Home / 209,891,785.41-314,541,732.36-99,109,254.85

Finding the Fourth Proportional to 209,891,785.41, 314,541,732.36 and 99,109,254.85

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Solution

The fourth proportional to 209,891,785.41, 314,541,732.36 and 99,109,254.85 is: 148,524,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,891,785.41 : 314,541,732.36 = 99,109,254.85 : x
  2. Step 2: Convert to fraction form
    209,891,785.41/314,541,732.36 = 99,109,254.85/x
  3. Step 3: Cross multiply
    209,891,785.41x = 314,541,732.36 × 99,109,254.85
  4. Step 4: Simplify right side
    209,891,785.41x = 31,173,996,713,013,036
  5. Step 5: Solve for x
    x = 31,173,996,713,013,036/209,891,785.41
  6. Step 6: Final answer
    x = 148,524,139.01

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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.