Home / 291,175,551,812.40-436,763,327,718.60-142,038,752,017.20

Finding the Fourth Proportional to 291,175,551,812.40, 436,763,327,718.60 and 142,038,752,017.20

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Solution

The fourth proportional to 291,175,551,812.40, 436,763,327,718.60 and 142,038,752,017.20 is: 213,058,128,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,175,551,812.40 : 436,763,327,718.60 = 142,038,752,017.20 : x
  2. Step 2: Convert to fraction form
    291,175,551,812.40/436,763,327,718.60 = 142,038,752,017.20/x
  3. Step 3: Cross multiply
    291,175,551,812.40x = 436,763,327,718.60 × 142,038,752,017.20
  4. Step 4: Simplify right side
    291,175,551,812.40x = 62,037,317,996,029,281,304,576
  5. Step 5: Solve for x
    x = 62,037,317,996,029,281,304,576/291,175,551,812.40
  6. Step 6: Final answer
    x = 213,058,128,025.80

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.