Home / 72,575,277.18-100,153,839.05-39,980,229.18

Finding the Fourth Proportional to 72,575,277.18, 100,153,839.05 and 39,980,229.18

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Solution

The fourth proportional to 72,575,277.18, 100,153,839.05 and 39,980,229.18 is: 55,172,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,575,277.18 : 100,153,839.05 = 39,980,229.18 : x
  2. Step 2: Convert to fraction form
    72,575,277.18/100,153,839.05 = 39,980,229.18/x
  3. Step 3: Cross multiply
    72,575,277.18x = 100,153,839.05 × 39,980,229.18
  4. Step 4: Simplify right side
    72,575,277.18x = 4,004,173,438,050,281.50
  5. Step 5: Solve for x
    x = 4,004,173,438,050,281.50/72,575,277.18
  6. Step 6: Final answer
    x = 55,172,692.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.