Home / 7,138,726.35-9,851,613.71-3,875,678.61

Finding the Fourth Proportional to 7,138,726.35, 9,851,613.71 and 3,875,678.61

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Solution

The fourth proportional to 7,138,726.35, 9,851,613.71 and 3,875,678.61 is: 5,348,529.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138,726.35 : 9,851,613.71 = 3,875,678.61 : x
  2. Step 2: Convert to fraction form
    7,138,726.35/9,851,613.71 = 3,875,678.61/x
  3. Step 3: Cross multiply
    7,138,726.35x = 9,851,613.71 × 3,875,678.61
  4. Step 4: Simplify right side
    7,138,726.35x = 38,181,688,529,829.74
  5. Step 5: Solve for x
    x = 38,181,688,529,829.74/7,138,726.35
  6. Step 6: Final answer
    x = 5,348,529.51

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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.