Home / 487,060,319.86-730,712,295.72-142,013,946.85

Finding the Fourth Proportional to 487,060,319.86, 730,712,295.72 and 142,013,946.85

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Solution

The fourth proportional to 487,060,319.86, 730,712,295.72 and 142,013,946.85 is: 213,056,438.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,060,319.86 : 730,712,295.72 = 142,013,946.85 : x
  2. Step 2: Convert to fraction form
    487,060,319.86/730,712,295.72 = 142,013,946.85/x
  3. Step 3: Cross multiply
    487,060,319.86x = 730,712,295.72 × 142,013,946.85
  4. Step 4: Simplify right side
    487,060,319.86x = 103,771,337,122,657,936
  5. Step 5: Solve for x
    x = 103,771,337,122,657,936/487,060,319.86
  6. Step 6: Final answer
    x = 213,056,438.58

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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.