Home / 102,752,280.80-154,128,421.20-42,211,455.20

Finding the Fourth Proportional to 102,752,280.80, 154,128,421.20 and 42,211,455.20

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Solution

The fourth proportional to 102,752,280.80, 154,128,421.20 and 42,211,455.20 is: 63,317,182.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,752,280.80 : 154,128,421.20 = 42,211,455.20 : x
  2. Step 2: Convert to fraction form
    102,752,280.80/154,128,421.20 = 42,211,455.20/x
  3. Step 3: Cross multiply
    102,752,280.80x = 154,128,421.20 × 42,211,455.20
  4. Step 4: Simplify right side
    102,752,280.80x = 6,505,984,946,530,530
  5. Step 5: Solve for x
    x = 6,505,984,946,530,530/102,752,280.80
  6. Step 6: Final answer
    x = 63,317,182.80

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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.