Home / 98,852,001.80-148,278,002.70-81,719,918.60

Finding the Fourth Proportional to 98,852,001.80, 148,278,002.70 and 81,719,918.60

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Solution

The fourth proportional to 98,852,001.80, 148,278,002.70 and 81,719,918.60 is: 122,579,877.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,852,001.80 : 148,278,002.70 = 81,719,918.60 : x
  2. Step 2: Convert to fraction form
    98,852,001.80/148,278,002.70 = 81,719,918.60/x
  3. Step 3: Cross multiply
    98,852,001.80x = 148,278,002.70 × 81,719,918.60
  4. Step 4: Simplify right side
    98,852,001.80x = 12,117,266,310,814,578
  5. Step 5: Solve for x
    x = 12,117,266,310,814,578/98,852,001.80
  6. Step 6: Final answer
    x = 122,579,877.90

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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.