Home / 77,668,630.74-107,184,982.77-42,388,698.66

Finding the Fourth Proportional to 77,668,630.74, 107,184,982.77 and 42,388,698.66

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Solution

The fourth proportional to 77,668,630.74, 107,184,982.77 and 42,388,698.66 is: 58,497,644.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,668,630.74 : 107,184,982.77 = 42,388,698.66 : x
  2. Step 2: Convert to fraction form
    77,668,630.74/107,184,982.77 = 42,388,698.66/x
  3. Step 3: Cross multiply
    77,668,630.74x = 107,184,982.77 × 42,388,698.66
  4. Step 4: Simplify right side
    77,668,630.74x = 4,543,431,935,514,822
  5. Step 5: Solve for x
    x = 4,543,431,935,514,822/77,668,630.74
  6. Step 6: Final answer
    x = 58,497,644.32

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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.