Home / 7,187,884.21-9,919,681.76-3,925,001.71

Finding the Fourth Proportional to 7,187,884.21, 9,919,681.76 and 3,925,001.71

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Solution

The fourth proportional to 7,187,884.21, 9,919,681.76 and 3,925,001.71 is: 5,416,721.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187,884.21 : 9,919,681.76 = 3,925,001.71 : x
  2. Step 2: Convert to fraction form
    7,187,884.21/9,919,681.76 = 3,925,001.71/x
  3. Step 3: Cross multiply
    7,187,884.21x = 9,919,681.76 × 3,925,001.71
  4. Step 4: Simplify right side
    7,187,884.21x = 38,934,767,801,432.40
  5. Step 5: Solve for x
    x = 38,934,767,801,432.40/7,187,884.21
  6. Step 6: Final answer
    x = 5,416,721.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.