Home / 659,155,555.71-988,177,264.11-542,576,665.01

Finding the Fourth Proportional to 659,155,555.71, 988,177,264.11 and 542,576,665.01

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Solution

The fourth proportional to 659,155,555.71, 988,177,264.11 and 542,576,665.01 is: 813,407,275.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,155,555.71 : 988,177,264.11 = 542,576,665.01 : x
  2. Step 2: Convert to fraction form
    659,155,555.71/988,177,264.11 = 542,576,665.01/x
  3. Step 3: Cross multiply
    659,155,555.71x = 988,177,264.11 × 542,576,665.01
  4. Step 4: Simplify right side
    659,155,555.71x = 536,161,924,401,980,288
  5. Step 5: Solve for x
    x = 536,161,924,401,980,288/659,155,555.71
  6. Step 6: Final answer
    x = 813,407,275.05

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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.