Home / 1,429,272,032.70-2,143,908,049.05-509,178,387.90

Finding the Fourth Proportional to 1,429,272,032.70, 2,143,908,049.05 and 509,178,387.90

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Solution

The fourth proportional to 1,429,272,032.70, 2,143,908,049.05 and 509,178,387.90 is: 763,767,581.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,272,032.70 : 2,143,908,049.05 = 509,178,387.90 : x
  2. Step 2: Convert to fraction form
    1,429,272,032.70/2,143,908,049.05 = 509,178,387.90/x
  3. Step 3: Cross multiply
    1,429,272,032.70x = 2,143,908,049.05 × 509,178,387.90
  4. Step 4: Simplify right side
    1,429,272,032.70x = 1,091,631,644,221,113,088
  5. Step 5: Solve for x
    x = 1,091,631,644,221,113,088/1,429,272,032.70
  6. Step 6: Final answer
    x = 763,767,581.85

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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.