Home / 664,255,209.94-916,672,154.72-358,728,211.76

Finding the Fourth Proportional to 664,255,209.94, 916,672,154.72 and 358,728,211.76

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Solution

The fourth proportional to 664,255,209.94, 916,672,154.72 and 358,728,211.76 is: 495,044,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,255,209.94 : 916,672,154.72 = 358,728,211.76 : x
  2. Step 2: Convert to fraction form
    664,255,209.94/916,672,154.72 = 358,728,211.76/x
  3. Step 3: Cross multiply
    664,255,209.94x = 916,672,154.72 × 358,728,211.76
  4. Step 4: Simplify right side
    664,255,209.94x = 328,836,162,826,514,624
  5. Step 5: Solve for x
    x = 328,836,162,826,514,624/664,255,209.94
  6. Step 6: Final answer
    x = 495,044,913.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.