Home / 85,248,011.40-127,872,017.10-51,207,793.80

Finding the Fourth Proportional to 85,248,011.40, 127,872,017.10 and 51,207,793.80

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Solution

The fourth proportional to 85,248,011.40, 127,872,017.10 and 51,207,793.80 is: 76,811,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,011.40 : 127,872,017.10 = 51,207,793.80 : x
  2. Step 2: Convert to fraction form
    85,248,011.40/127,872,017.10 = 51,207,793.80/x
  3. Step 3: Cross multiply
    85,248,011.40x = 127,872,017.10 × 51,207,793.80
  4. Step 4: Simplify right side
    85,248,011.40x = 6,548,043,884,446,873
  5. Step 5: Solve for x
    x = 6,548,043,884,446,873/85,248,011.40
  6. Step 6: Final answer
    x = 76,811,690.70

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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.