Home / 558,155,310.72-770,254,339.20-310,695,123.84

Finding the Fourth Proportional to 558,155,310.72, 770,254,339.20 and 310,695,123.84

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Solution

The fourth proportional to 558,155,310.72, 770,254,339.20 and 310,695,123.84 is: 428,759,276.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,155,310.72 : 770,254,339.20 = 310,695,123.84 : x
  2. Step 2: Convert to fraction form
    558,155,310.72/770,254,339.20 = 310,695,123.84/x
  3. Step 3: Cross multiply
    558,155,310.72x = 770,254,339.20 × 310,695,123.84
  4. Step 4: Simplify right side
    558,155,310.72x = 239,314,267,306,041,376
  5. Step 5: Solve for x
    x = 239,314,267,306,041,376/558,155,310.72
  6. Step 6: Final answer
    x = 428,759,276.69

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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.