Home / 385,073,903.80-577,466,087.23-139,369,833.82

Finding the Fourth Proportional to 385,073,903.80, 577,466,087.23 and 139,369,833.82

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Solution

The fourth proportional to 385,073,903.80, 577,466,087.23 and 139,369,833.82 is: 209,002,354.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,073,903.80 : 577,466,087.23 = 139,369,833.82 : x
  2. Step 2: Convert to fraction form
    385,073,903.80/577,466,087.23 = 139,369,833.82/x
  3. Step 3: Cross multiply
    385,073,903.80x = 577,466,087.23 × 139,369,833.82
  4. Step 4: Simplify right side
    385,073,903.80x = 80,481,352,613,930,720
  5. Step 5: Solve for x
    x = 80,481,352,613,930,720/385,073,903.80
  6. Step 6: Final answer
    x = 209,002,354.66

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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.