Home / 19,428,081.90-29,145,622.05-8,069,678.70

Finding the Fourth Proportional to 19,428,081.90, 29,145,622.05 and 8,069,678.70

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Solution

The fourth proportional to 19,428,081.90, 29,145,622.05 and 8,069,678.70 is: 12,105,971.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428,081.90 : 29,145,622.05 = 8,069,678.70 : x
  2. Step 2: Convert to fraction form
    19,428,081.90/29,145,622.05 = 8,069,678.70/x
  3. Step 3: Cross multiply
    19,428,081.90x = 29,145,622.05 × 8,069,678.70
  4. Step 4: Simplify right side
    19,428,081.90x = 235,195,805,455,135.34
  5. Step 5: Solve for x
    x = 235,195,805,455,135.34/19,428,081.90
  6. Step 6: Final answer
    x = 12,105,971.48

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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.