Home / 84,248,641.60-126,372,962.40-74,682,703.60

Finding the Fourth Proportional to 84,248,641.60, 126,372,962.40 and 74,682,703.60

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Solution

The fourth proportional to 84,248,641.60, 126,372,962.40 and 74,682,703.60 is: 112,024,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,248,641.60 : 126,372,962.40 = 74,682,703.60 : x
  2. Step 2: Convert to fraction form
    84,248,641.60/126,372,962.40 = 74,682,703.60/x
  3. Step 3: Cross multiply
    84,248,641.60x = 126,372,962.40 × 74,682,703.60
  4. Step 4: Simplify right side
    84,248,641.60x = 9,437,874,493,973,144
  5. Step 5: Solve for x
    x = 9,437,874,493,973,144/84,248,641.60
  6. Step 6: Final answer
    x = 112,024,055.40

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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.