Home / 288,280,566.56-432,420,849.84-72,869,814.56

Finding the Fourth Proportional to 288,280,566.56, 432,420,849.84 and 72,869,814.56

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Solution

The fourth proportional to 288,280,566.56, 432,420,849.84 and 72,869,814.56 is: 109,304,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,280,566.56 : 432,420,849.84 = 72,869,814.56 : x
  2. Step 2: Convert to fraction form
    288,280,566.56/432,420,849.84 = 72,869,814.56/x
  3. Step 3: Cross multiply
    288,280,566.56x = 432,420,849.84 × 72,869,814.56
  4. Step 4: Simplify right side
    288,280,566.56x = 31,510,427,139,718,404
  5. Step 5: Solve for x
    x = 31,510,427,139,718,404/288,280,566.56
  6. Step 6: Final answer
    x = 109,304,721.84

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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.