Home / 78,386,235.66-108,173,425.46-43,106,314.68

Finding the Fourth Proportional to 78,386,235.66, 108,173,425.46 and 43,106,314.68

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Solution

The fourth proportional to 78,386,235.66, 108,173,425.46 and 43,106,314.68 is: 59,486,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,386,235.66 : 108,173,425.46 = 43,106,314.68 : x
  2. Step 2: Convert to fraction form
    78,386,235.66/108,173,425.46 = 43,106,314.68/x
  3. Step 3: Cross multiply
    78,386,235.66x = 108,173,425.46 × 43,106,314.68
  4. Step 4: Simplify right side
    78,386,235.66x = 4,662,957,717,676,752
  5. Step 5: Solve for x
    x = 4,662,957,717,676,752/78,386,235.66
  6. Step 6: Final answer
    x = 59,486,945.36

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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.