Home / 287,418,913.99-431,164,225.50-112,519,355.86

Finding the Fourth Proportional to 287,418,913.99, 431,164,225.50 and 112,519,355.86

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Solution

The fourth proportional to 287,418,913.99, 431,164,225.50 and 112,519,355.86 is: 168,793,070.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,418,913.99 : 431,164,225.50 = 112,519,355.86 : x
  2. Step 2: Convert to fraction form
    287,418,913.99/431,164,225.50 = 112,519,355.86/x
  3. Step 3: Cross multiply
    287,418,913.99x = 431,164,225.50 × 112,519,355.86
  4. Step 4: Simplify right side
    287,418,913.99x = 48,514,320,923,135,784
  5. Step 5: Solve for x
    x = 48,514,320,923,135,784/287,418,913.99
  6. Step 6: Final answer
    x = 168,793,070.19

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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.