Home / 389,617,878.61-584,426,668.88-156,448,520.70

Finding the Fourth Proportional to 389,617,878.61, 584,426,668.88 and 156,448,520.70

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Solution

The fourth proportional to 389,617,878.61, 584,426,668.88 and 156,448,520.70 is: 234,672,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,617,878.61 : 584,426,668.88 = 156,448,520.70 : x
  2. Step 2: Convert to fraction form
    389,617,878.61/584,426,668.88 = 156,448,520.70/x
  3. Step 3: Cross multiply
    389,617,878.61x = 584,426,668.88 × 156,448,520.70
  4. Step 4: Simplify right side
    389,617,878.61x = 91,432,687,803,904,720
  5. Step 5: Solve for x
    x = 91,432,687,803,904,720/389,617,878.61
  6. Step 6: Final answer
    x = 234,672,721.21

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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.