Home / 125,314,018.57-187,970,769.40-70,701,812.74

Finding the Fourth Proportional to 125,314,018.57, 187,970,769.40 and 70,701,812.74

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Solution

The fourth proportional to 125,314,018.57, 187,970,769.40 and 70,701,812.74 is: 106,052,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,314,018.57 : 187,970,769.40 = 70,701,812.74 : x
  2. Step 2: Convert to fraction form
    125,314,018.57/187,970,769.40 = 70,701,812.74/x
  3. Step 3: Cross multiply
    125,314,018.57x = 187,970,769.40 × 70,701,812.74
  4. Step 4: Simplify right side
    125,314,018.57x = 13,289,874,138,712,522
  5. Step 5: Solve for x
    x = 13,289,874,138,712,522/125,314,018.57
  6. Step 6: Final answer
    x = 106,052,573.29

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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.