Home / 39,479,976.80-59,219,965.20-28,000,851.20

Finding the Fourth Proportional to 39,479,976.80, 59,219,965.20 and 28,000,851.20

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Solution

The fourth proportional to 39,479,976.80, 59,219,965.20 and 28,000,851.20 is: 42,001,276.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,479,976.80 : 59,219,965.20 = 28,000,851.20 : x
  2. Step 2: Convert to fraction form
    39,479,976.80/59,219,965.20 = 28,000,851.20/x
  3. Step 3: Cross multiply
    39,479,976.80x = 59,219,965.20 × 28,000,851.20
  4. Step 4: Simplify right side
    39,479,976.80x = 1,658,209,433,634,378.25
  5. Step 5: Solve for x
    x = 1,658,209,433,634,378.25/39,479,976.80
  6. Step 6: Final answer
    x = 42,001,276.80

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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.