Home / 287,055,815.20-430,646,708.40-92,976,186.40

Finding the Fourth Proportional to 287,055,815.20, 430,646,708.40 and 92,976,186.40

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Solution

The fourth proportional to 287,055,815.20, 430,646,708.40 and 92,976,186.40 is: 139,484,680.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,055,815.20 : 430,646,708.40 = 92,976,186.40 : x
  2. Step 2: Convert to fraction form
    287,055,815.20/430,646,708.40 = 92,976,186.40/x
  3. Step 3: Cross multiply
    287,055,815.20x = 430,646,708.40 × 92,976,186.40
  4. Step 4: Simplify right side
    287,055,815.20x = 40,039,888,632,744,848
  5. Step 5: Solve for x
    x = 40,039,888,632,744,848/287,055,815.20
  6. Step 6: Final answer
    x = 139,484,680.37

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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.