Home / 497,311,681.40-745,967,522.10-388,472,564.60

Finding the Fourth Proportional to 497,311,681.40, 745,967,522.10 and 388,472,564.60

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Solution

The fourth proportional to 497,311,681.40, 745,967,522.10 and 388,472,564.60 is: 582,708,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,311,681.40 : 745,967,522.10 = 388,472,564.60 : x
  2. Step 2: Convert to fraction form
    497,311,681.40/745,967,522.10 = 388,472,564.60/x
  3. Step 3: Cross multiply
    497,311,681.40x = 745,967,522.10 × 388,472,564.60
  4. Step 4: Simplify right side
    497,311,681.40x = 289,787,916,418,494,208
  5. Step 5: Solve for x
    x = 289,787,916,418,494,208/497,311,681.40
  6. Step 6: Final answer
    x = 582,708,846.90

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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.