Home / 399,225,789.45-599,053,068.50-166,217,356.53

Finding the Fourth Proportional to 399,225,789.45, 599,053,068.50 and 166,217,356.53

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Solution

The fourth proportional to 399,225,789.45, 599,053,068.50 and 166,217,356.53 is: 249,415,293.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,225,789.45 : 599,053,068.50 = 166,217,356.53 : x
  2. Step 2: Convert to fraction form
    399,225,789.45/599,053,068.50 = 166,217,356.53/x
  3. Step 3: Cross multiply
    399,225,789.45x = 599,053,068.50 × 166,217,356.53
  4. Step 4: Simplify right side
    399,225,789.45x = 99,573,017,466,423,920
  5. Step 5: Solve for x
    x = 99,573,017,466,423,920/399,225,789.45
  6. Step 6: Final answer
    x = 249,415,293.55

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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.