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Finding the Fourth Proportional to 398,608,347.80, 597,912,521.70 and 360,344,595.80

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Solution

The fourth proportional to 398,608,347.80, 597,912,521.70 and 360,344,595.80 is: 540,516,893.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,608,347.80 : 597,912,521.70 = 360,344,595.80 : x
  2. Step 2: Convert to fraction form
    398,608,347.80/597,912,521.70 = 360,344,595.80/x
  3. Step 3: Cross multiply
    398,608,347.80x = 597,912,521.70 × 360,344,595.80
  4. Step 4: Simplify right side
    398,608,347.80x = 215,454,545,955,745,248
  5. Step 5: Solve for x
    x = 215,454,545,955,745,248/398,608,347.80
  6. Step 6: Final answer
    x = 540,516,893.70

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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.