Home / 84,411,916.80-126,617,875.20-49,923,801.60

Finding the Fourth Proportional to 84,411,916.80, 126,617,875.20 and 49,923,801.60

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Solution

The fourth proportional to 84,411,916.80, 126,617,875.20 and 49,923,801.60 is: 74,885,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,411,916.80 : 126,617,875.20 = 49,923,801.60 : x
  2. Step 2: Convert to fraction form
    84,411,916.80/126,617,875.20 = 49,923,801.60/x
  3. Step 3: Cross multiply
    84,411,916.80x = 126,617,875.20 × 49,923,801.60
  4. Step 4: Simplify right side
    84,411,916.80x = 6,321,245,680,498,361
  5. Step 5: Solve for x
    x = 6,321,245,680,498,361/84,411,916.80
  6. Step 6: Final answer
    x = 74,885,702.40

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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.