Home / 388,709,128.20-583,287,641.10-146,545,825.80

Finding the Fourth Proportional to 388,709,128.20, 583,287,641.10 and 146,545,825.80

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Solution

The fourth proportional to 388,709,128.20, 583,287,641.10 and 146,545,825.80 is: 219,903,168.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,709,128.20 : 583,287,641.10 = 146,545,825.80 : x
  2. Step 2: Convert to fraction form
    388,709,128.20/583,287,641.10 = 146,545,825.80/x
  3. Step 3: Cross multiply
    388,709,128.20x = 583,287,641.10 × 146,545,825.80
  4. Step 4: Simplify right side
    388,709,128.20x = 85,478,369,043,933,536
  5. Step 5: Solve for x
    x = 85,478,369,043,933,536/388,709,128.20
  6. Step 6: Final answer
    x = 219,903,168.83

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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.