Home / 145,849,898.20-218,637,989.70-55,034,512.60

Finding the Fourth Proportional to 145,849,898.20, 218,637,989.70 and 55,034,512.60

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Solution

The fourth proportional to 145,849,898.20, 218,637,989.70 and 55,034,512.60 is: 82,500,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,849,898.20 : 218,637,989.70 = 55,034,512.60 : x
  2. Step 2: Convert to fraction form
    145,849,898.20/218,637,989.70 = 55,034,512.60/x
  3. Step 3: Cross multiply
    145,849,898.20x = 218,637,989.70 × 55,034,512.60
  4. Step 4: Simplify right side
    145,849,898.20x = 12,032,635,198,983,320
  5. Step 5: Solve for x
    x = 12,032,635,198,983,320/145,849,898.20
  6. Step 6: Final answer
    x = 82,500,127.51

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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.