Home / 399,429,930.24-598,068,074.88-260,912,482.56

Finding the Fourth Proportional to 399,429,930.24, 598,068,074.88 and 260,912,482.56

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Solution

The fourth proportional to 399,429,930.24, 598,068,074.88 and 260,912,482.56 is: 390,665,331.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,429,930.24 : 598,068,074.88 = 260,912,482.56 : x
  2. Step 2: Convert to fraction form
    399,429,930.24/598,068,074.88 = 260,912,482.56/x
  3. Step 3: Cross multiply
    399,429,930.24x = 598,068,074.88 × 260,912,482.56
  4. Step 4: Simplify right side
    399,429,930.24x = 156,043,426,156,820,768
  5. Step 5: Solve for x
    x = 156,043,426,156,820,768/399,429,930.24
  6. Step 6: Final answer
    x = 390,665,331.62

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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.