Home / 78,549,330.73-108,394,070.06-43,266,376.29

Finding the Fourth Proportional to 78,549,330.73, 108,394,070.06 and 43,266,376.29

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Solution

The fourth proportional to 78,549,330.73, 108,394,070.06 and 43,266,376.29 is: 59,705,392.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,549,330.73 : 108,394,070.06 = 43,266,376.29 : x
  2. Step 2: Convert to fraction form
    78,549,330.73/108,394,070.06 = 43,266,376.29/x
  3. Step 3: Cross multiply
    78,549,330.73x = 108,394,070.06 × 43,266,376.29
  4. Step 4: Simplify right side
    78,549,330.73x = 4,689,818,622,238,013
  5. Step 5: Solve for x
    x = 4,689,818,622,238,013/78,549,330.73
  6. Step 6: Final answer
    x = 59,705,392.51

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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.