Home / 77,838,221.86-107,418,988.24-43,033,154.31

Finding the Fourth Proportional to 77,838,221.86, 107,418,988.24 and 43,033,154.31

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Solution

The fourth proportional to 77,838,221.86, 107,418,988.24 and 43,033,154.31 is: 59,386,992.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,838,221.86 : 107,418,988.24 = 43,033,154.31 : x
  2. Step 2: Convert to fraction form
    77,838,221.86/107,418,988.24 = 43,033,154.31/x
  3. Step 3: Cross multiply
    77,838,221.86x = 107,418,988.24 × 43,033,154.31
  4. Step 4: Simplify right side
    77,838,221.86x = 4,622,577,896,648,413
  5. Step 5: Solve for x
    x = 4,622,577,896,648,413/77,838,221.86
  6. Step 6: Final answer
    x = 59,386,992.49

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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.