Home / 900,331,120.80-1,350,471,488.04-286,952,153.76

Finding the Fourth Proportional to 900,331,120.80, 1,350,471,488.04 and 286,952,153.76

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Solution

The fourth proportional to 900,331,120.80, 1,350,471,488.04 and 286,952,153.76 is: 430,420,201.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,331,120.80 : 1,350,471,488.04 = 286,952,153.76 : x
  2. Step 2: Convert to fraction form
    900,331,120.80/1,350,471,488.04 = 286,952,153.76/x
  3. Step 3: Cross multiply
    900,331,120.80x = 1,350,471,488.04 × 286,952,153.76
  4. Step 4: Simplify right side
    900,331,120.80x = 387,520,702,084,550,080
  5. Step 5: Solve for x
    x = 387,520,702,084,550,080/900,331,120.80
  6. Step 6: Final answer
    x = 430,420,201.11

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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.