Home / 288,176,470.60-432,264,705.90-72,765,718.60

Finding the Fourth Proportional to 288,176,470.60, 432,264,705.90 and 72,765,718.60

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Solution

The fourth proportional to 288,176,470.60, 432,264,705.90 and 72,765,718.60 is: 109,148,577.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,176,470.60 : 432,264,705.90 = 72,765,718.60 : x
  2. Step 2: Convert to fraction form
    288,176,470.60/432,264,705.90 = 72,765,718.60/x
  3. Step 3: Cross multiply
    288,176,470.60x = 432,264,705.90 × 72,765,718.60
  4. Step 4: Simplify right side
    288,176,470.60x = 31,454,051,950,231,156
  5. Step 5: Solve for x
    x = 31,454,051,950,231,156/288,176,470.60
  6. Step 6: Final answer
    x = 109,148,577.90

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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.