Home / 85,248,000.80-127,872,001.20-78,193,613.60

Finding the Fourth Proportional to 85,248,000.80, 127,872,001.20 and 78,193,613.60

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Solution

The fourth proportional to 85,248,000.80, 127,872,001.20 and 78,193,613.60 is: 117,290,420.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,000.80 : 127,872,001.20 = 78,193,613.60 : x
  2. Step 2: Convert to fraction form
    85,248,000.80/127,872,001.20 = 78,193,613.60/x
  3. Step 3: Cross multiply
    85,248,000.80x = 127,872,001.20 × 78,193,613.60
  4. Step 4: Simplify right side
    85,248,000.80x = 9,998,773,852,091,536
  5. Step 5: Solve for x
    x = 9,998,773,852,091,536/85,248,000.80
  6. Step 6: Final answer
    x = 117,290,420.40

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1.5x scale

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.