Home / 9,158,902.71-12,639,698.03-5,487,740.46

Finding the Fourth Proportional to 9,158,902.71, 12,639,698.03 and 5,487,740.46

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Solution

The fourth proportional to 9,158,902.71, 12,639,698.03 and 5,487,740.46 is: 7,573,328.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158,902.71 : 12,639,698.03 = 5,487,740.46 : x
  2. Step 2: Convert to fraction form
    9,158,902.71/12,639,698.03 = 5,487,740.46/x
  3. Step 3: Cross multiply
    9,158,902.71x = 12,639,698.03 × 5,487,740.46
  4. Step 4: Simplify right side
    9,158,902.71x = 69,363,382,281,413.29
  5. Step 5: Solve for x
    x = 69,363,382,281,413.29/9,158,902.71
  6. Step 6: Final answer
    x = 7,573,328.87

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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.