Home / 9,158,901.71-12,639,696.65-5,487,739.46

Finding the Fourth Proportional to 9,158,901.71, 12,639,696.65 and 5,487,739.46

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Solution

The fourth proportional to 9,158,901.71, 12,639,696.65 and 5,487,739.46 is: 7,573,327.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,158,901.71 : 12,639,696.65 = 5,487,739.46 : x
  2. Step 2: Convert to fraction form
    9,158,901.71/12,639,696.65 = 5,487,739.46/x
  3. Step 3: Cross multiply
    9,158,901.71x = 12,639,696.65 × 5,487,739.46
  4. Step 4: Simplify right side
    9,158,901.71x = 69,363,362,066,087.65
  5. Step 5: Solve for x
    x = 69,363,362,066,087.65/9,158,901.71
  6. Step 6: Final answer
    x = 7,573,327.49

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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.