Home / 388,709,129.20-583,287,642.60-146,545,826.80

Finding the Fourth Proportional to 388,709,129.20, 583,287,642.60 and 146,545,826.80

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Solution

The fourth proportional to 388,709,129.20, 583,287,642.60 and 146,545,826.80 is: 219,903,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,709,129.20 : 583,287,642.60 = 146,545,826.80 : x
  2. Step 2: Convert to fraction form
    388,709,129.20/583,287,642.60 = 146,545,826.80/x
  3. Step 3: Cross multiply
    388,709,129.20x = 583,287,642.60 × 146,545,826.80
  4. Step 4: Simplify right side
    388,709,129.20x = 85,478,369,847,039,920
  5. Step 5: Solve for x
    x = 85,478,369,847,039,920/388,709,129.20
  6. Step 6: Final answer
    x = 219,903,170.33

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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.