Home / 107,790,470.80-161,706,701.40-31,116,000.40

Finding the Fourth Proportional to 107,790,470.80, 161,706,701.40 and 31,116,000.40

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Solution

The fourth proportional to 107,790,470.80, 161,706,701.40 and 31,116,000.40 is: 46,680,061.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,790,470.80 : 161,706,701.40 = 31,116,000.40 : x
  2. Step 2: Convert to fraction form
    107,790,470.80/161,706,701.40 = 31,116,000.40/x
  3. Step 3: Cross multiply
    107,790,470.80x = 161,706,701.40 × 31,116,000.40
  4. Step 4: Simplify right side
    107,790,470.80x = 5,031,665,785,445,081
  5. Step 5: Solve for x
    x = 5,031,665,785,445,081/107,790,470.80
  6. Step 6: Final answer
    x = 46,680,061.31

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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.