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Finding the Fourth Proportional to 71,787,637.80, 107,681,456.70 and 26,343,527.40

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Solution

The fourth proportional to 71,787,637.80, 107,681,456.70 and 26,343,527.40 is: 39,515,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,787,637.80 : 107,681,456.70 = 26,343,527.40 : x
  2. Step 2: Convert to fraction form
    71,787,637.80/107,681,456.70 = 26,343,527.40/x
  3. Step 3: Cross multiply
    71,787,637.80x = 107,681,456.70 × 26,343,527.40
  4. Step 4: Simplify right side
    71,787,637.80x = 2,836,709,405,048,363.50
  5. Step 5: Solve for x
    x = 2,836,709,405,048,363.50/71,787,637.80
  6. Step 6: Final answer
    x = 39,515,291.10

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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.