Home / 84,217,881.60-126,326,822.40-71,888,450.40

Finding the Fourth Proportional to 84,217,881.60, 126,326,822.40 and 71,888,450.40

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Solution

The fourth proportional to 84,217,881.60, 126,326,822.40 and 71,888,450.40 is: 107,832,675.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,217,881.60 : 126,326,822.40 = 71,888,450.40 : x
  2. Step 2: Convert to fraction form
    84,217,881.60/126,326,822.40 = 71,888,450.40/x
  3. Step 3: Cross multiply
    84,217,881.60x = 126,326,822.40 × 71,888,450.40
  4. Step 4: Simplify right side
    84,217,881.60x = 9,081,439,506,292,010
  5. Step 5: Solve for x
    x = 9,081,439,506,292,010/84,217,881.60
  6. Step 6: Final answer
    x = 107,832,675.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.