Home / 78,074,051.41-107,743,369.25-42,791,574.22

Finding the Fourth Proportional to 78,074,051.41, 107,743,369.25 and 42,791,574.22

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Solution

The fourth proportional to 78,074,051.41, 107,743,369.25 and 42,791,574.22 is: 59,053,018.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,074,051.41 : 107,743,369.25 = 42,791,574.22 : x
  2. Step 2: Convert to fraction form
    78,074,051.41/107,743,369.25 = 42,791,574.22/x
  3. Step 3: Cross multiply
    78,074,051.41x = 107,743,369.25 × 42,791,574.22
  4. Step 4: Simplify right side
    78,074,051.41x = 4,610,508,382,417,918
  5. Step 5: Solve for x
    x = 4,610,508,382,417,918/78,074,051.41
  6. Step 6: Final answer
    x = 59,053,018.24

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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.