Home / 291,175,551,813.40-436,763,327,720.10-142,038,752,018.20

Finding the Fourth Proportional to 291,175,551,813.40, 436,763,327,720.10 and 142,038,752,018.20

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Solution

The fourth proportional to 291,175,551,813.40, 436,763,327,720.10 and 142,038,752,018.20 is: 213,058,128,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,175,551,813.40 : 436,763,327,720.10 = 142,038,752,018.20 : x
  2. Step 2: Convert to fraction form
    291,175,551,813.40/436,763,327,720.10 = 142,038,752,018.20/x
  3. Step 3: Cross multiply
    291,175,551,813.40x = 436,763,327,720.10 × 142,038,752,018.20
  4. Step 4: Simplify right side
    291,175,551,813.40x = 62,037,317,996,679,104,823,296
  5. Step 5: Solve for x
    x = 62,037,317,996,679,104,823,296/291,175,551,813.40
  6. Step 6: Final answer
    x = 213,058,128,027.30

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Double scale
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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.