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Finding the Fourth Proportional to 7,117,928.32, 9,822,750 and 3,854,748.16

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Solution

The fourth proportional to 7,117,928.32, 9,822,750 and 3,854,748.16 is: 5,319,557.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117,928.32 : 9,822,750 = 3,854,748.16 : x
  2. Step 2: Convert to fraction form
    7,117,928.32/9,822,750 = 3,854,748.16/x
  3. Step 3: Cross multiply
    7,117,928.32x = 9,822,750 × 3,854,748.16
  4. Step 4: Simplify right side
    7,117,928.32x = 37,864,227,488,640
  5. Step 5: Solve for x
    x = 37,864,227,488,640/7,117,928.32
  6. Step 6: Final answer
    x = 5,319,557.29

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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.