Home / 84,231,776.80-126,389,655.60-47,868,090.40

Finding the Fourth Proportional to 84,231,776.80, 126,389,655.60 and 47,868,090.40

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Solution

The fourth proportional to 84,231,776.80, 126,389,655.60 and 47,868,090.40 is: 71,825,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,231,776.80 : 126,389,655.60 = 47,868,090.40 : x
  2. Step 2: Convert to fraction form
    84,231,776.80/126,389,655.60 = 47,868,090.40/x
  3. Step 3: Cross multiply
    84,231,776.80x = 126,389,655.60 × 47,868,090.40
  4. Step 4: Simplify right side
    84,231,776.80x = 6,050,031,459,885,666
  5. Step 5: Solve for x
    x = 6,050,031,459,885,666/84,231,776.80
  6. Step 6: Final answer
    x = 71,825,998.33

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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.