Home / 72,581,101.80-108,800,793.90-64,928,351.40

Finding the Fourth Proportional to 72,581,101.80, 108,800,793.90 and 64,928,351.40

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Solution

The fourth proportional to 72,581,101.80, 108,800,793.90 and 64,928,351.40 is: 97,329,139.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,101.80 : 108,800,793.90 = 64,928,351.40 : x
  2. Step 2: Convert to fraction form
    72,581,101.80/108,800,793.90 = 64,928,351.40/x
  3. Step 3: Cross multiply
    72,581,101.80x = 108,800,793.90 × 64,928,351.40
  4. Step 4: Simplify right side
    72,581,101.80x = 7,064,256,178,938,177
  5. Step 5: Solve for x
    x = 7,064,256,178,938,177/72,581,101.80
  6. Step 6: Final answer
    x = 97,329,139.46

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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.