Home / 769,828,812.60-1,154,743,218.90-624,709,990.20

Finding the Fourth Proportional to 769,828,812.60, 1,154,743,218.90 and 624,709,990.20

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Solution

The fourth proportional to 769,828,812.60, 1,154,743,218.90 and 624,709,990.20 is: 937,064,985.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,828,812.60 : 1,154,743,218.90 = 624,709,990.20 : x
  2. Step 2: Convert to fraction form
    769,828,812.60/1,154,743,218.90 = 624,709,990.20/x
  3. Step 3: Cross multiply
    769,828,812.60x = 1,154,743,218.90 × 624,709,990.20
  4. Step 4: Simplify right side
    769,828,812.60x = 721,379,624,962,535,552
  5. Step 5: Solve for x
    x = 721,379,624,962,535,552/769,828,812.60
  6. Step 6: Final answer
    x = 937,064,985.30

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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.