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Finding the Fourth Proportional to 528,409,892.40, 792,614,838.60 and 344,743,882.80

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Solution

The fourth proportional to 528,409,892.40, 792,614,838.60 and 344,743,882.80 is: 517,115,824.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,409,892.40 : 792,614,838.60 = 344,743,882.80 : x
  2. Step 2: Convert to fraction form
    528,409,892.40/792,614,838.60 = 344,743,882.80/x
  3. Step 3: Cross multiply
    528,409,892.40x = 792,614,838.60 × 344,743,882.80
  4. Step 4: Simplify right side
    528,409,892.40x = 273,249,117,023,859,328
  5. Step 5: Solve for x
    x = 273,249,117,023,859,328/528,409,892.40
  6. Step 6: Final answer
    x = 517,115,824.20

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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.