Home / 28,763,941.86-39,694,195.40-15,711,200.91

Finding the Fourth Proportional to 28,763,941.86, 39,694,195.40 and 15,711,200.91

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Solution

The fourth proportional to 28,763,941.86, 39,694,195.40 and 15,711,200.91 is: 21,681,433.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,763,941.86 : 39,694,195.40 = 15,711,200.91 : x
  2. Step 2: Convert to fraction form
    28,763,941.86/39,694,195.40 = 15,711,200.91/x
  3. Step 3: Cross multiply
    28,763,941.86x = 39,694,195.40 × 15,711,200.91
  4. Step 4: Simplify right side
    28,763,941.86x = 623,643,478,811,641.88
  5. Step 5: Solve for x
    x = 623,643,478,811,641.88/28,763,941.86
  6. Step 6: Final answer
    x = 21,681,433.02

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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.