Home / 111,788,549.47-167,834,034.75-77,158,853.35

Finding the Fourth Proportional to 111,788,549.47, 167,834,034.75 and 77,158,853.35

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Solution

The fourth proportional to 111,788,549.47, 167,834,034.75 and 77,158,853.35 is: 115,842,648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,788,549.47 : 167,834,034.75 = 77,158,853.35 : x
  2. Step 2: Convert to fraction form
    111,788,549.47/167,834,034.75 = 77,158,853.35/x
  3. Step 3: Cross multiply
    111,788,549.47x = 167,834,034.75 × 77,158,853.35
  4. Step 4: Simplify right side
    111,788,549.47x = 12,949,881,674,414,052
  5. Step 5: Solve for x
    x = 12,949,881,674,414,052/111,788,549.47
  6. Step 6: Final answer
    x = 115,842,648.78

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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.