Home / 747,121,211.20-1,120,681,816.80-402,747,443.20

Finding the Fourth Proportional to 747,121,211.20, 1,120,681,816.80 and 402,747,443.20

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Solution

The fourth proportional to 747,121,211.20, 1,120,681,816.80 and 402,747,443.20 is: 604,121,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,121,211.20 : 1,120,681,816.80 = 402,747,443.20 : x
  2. Step 2: Convert to fraction form
    747,121,211.20/1,120,681,816.80 = 402,747,443.20/x
  3. Step 3: Cross multiply
    747,121,211.20x = 1,120,681,816.80 × 402,747,443.20
  4. Step 4: Simplify right side
    747,121,211.20x = 451,351,736,356,930,752
  5. Step 5: Solve for x
    x = 451,351,736,356,930,752/747,121,211.20
  6. Step 6: Final answer
    x = 604,121,164.80

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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.