Home / 151,610,876.46-209,223,009.72-81,996,257.52

Finding the Fourth Proportional to 151,610,876.46, 209,223,009.72 and 81,996,257.52

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Solution

The fourth proportional to 151,610,876.46, 209,223,009.72 and 81,996,257.52 is: 113,154,835.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,610,876.46 : 209,223,009.72 = 81,996,257.52 : x
  2. Step 2: Convert to fraction form
    151,610,876.46/209,223,009.72 = 81,996,257.52/x
  3. Step 3: Cross multiply
    151,610,876.46x = 209,223,009.72 × 81,996,257.52
  4. Step 4: Simplify right side
    151,610,876.46x = 17,155,503,784,110,582
  5. Step 5: Solve for x
    x = 17,155,503,784,110,582/151,610,876.46
  6. Step 6: Final answer
    x = 113,154,835.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.