Home / 124,828,753.60-187,243,130.40-76,455,812.80

Finding the Fourth Proportional to 124,828,753.60, 187,243,130.40 and 76,455,812.80

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Solution

The fourth proportional to 124,828,753.60, 187,243,130.40 and 76,455,812.80 is: 114,683,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,828,753.60 : 187,243,130.40 = 76,455,812.80 : x
  2. Step 2: Convert to fraction form
    124,828,753.60/187,243,130.40 = 76,455,812.80/x
  3. Step 3: Cross multiply
    124,828,753.60x = 187,243,130.40 × 76,455,812.80
  4. Step 4: Simplify right side
    124,828,753.60x = 14,315,825,725,948,390
  5. Step 5: Solve for x
    x = 14,315,825,725,948,390/124,828,753.60
  6. Step 6: Final answer
    x = 114,683,719.20

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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.