Home / 155,990,042.11-215,490,483.57-124,586,861.23

Finding the Fourth Proportional to 155,990,042.11, 215,490,483.57 and 124,586,861.23

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Solution

The fourth proportional to 155,990,042.11, 215,490,483.57 and 124,586,861.23 is: 172,108,953.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,990,042.11 : 215,490,483.57 = 124,586,861.23 : x
  2. Step 2: Convert to fraction form
    155,990,042.11/215,490,483.57 = 124,586,861.23/x
  3. Step 3: Cross multiply
    155,990,042.11x = 215,490,483.57 × 124,586,861.23
  4. Step 4: Simplify right side
    155,990,042.11x = 26,847,282,972,921,184
  5. Step 5: Solve for x
    x = 26,847,282,972,921,184/155,990,042.11
  6. Step 6: Final answer
    x = 172,108,953.94

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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.