Home / 891,424,010.10-1,337,136,015.15-687,350,666.10

Finding the Fourth Proportional to 891,424,010.10, 1,337,136,015.15 and 687,350,666.10

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Solution

The fourth proportional to 891,424,010.10, 1,337,136,015.15 and 687,350,666.10 is: 1,031,025,999.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,424,010.10 : 1,337,136,015.15 = 687,350,666.10 : x
  2. Step 2: Convert to fraction form
    891,424,010.10/1,337,136,015.15 = 687,350,666.10/x
  3. Step 3: Cross multiply
    891,424,010.10x = 1,337,136,015.15 × 687,350,666.10
  4. Step 4: Simplify right side
    891,424,010.10x = 919,081,330,679,652,352
  5. Step 5: Solve for x
    x = 919,081,330,679,652,352/891,424,010.10
  6. Step 6: Final answer
    x = 1,031,025,999.15

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Double scale
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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.