Home / 28,539,839.16-42,816,300.84-12,368,505.60

Finding the Fourth Proportional to 28,539,839.16, 42,816,300.84 and 12,368,505.60

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Solution

The fourth proportional to 28,539,839.16, 42,816,300.84 and 12,368,505.60 is: 18,555,593.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,539,839.16 : 42,816,300.84 = 12,368,505.60 : x
  2. Step 2: Convert to fraction form
    28,539,839.16/42,816,300.84 = 12,368,505.60/x
  3. Step 3: Cross multiply
    28,539,839.16x = 42,816,300.84 × 12,368,505.60
  4. Step 4: Simplify right side
    28,539,839.16x = 529,573,656,710,824.75
  5. Step 5: Solve for x
    x = 529,573,656,710,824.75/28,539,839.16
  6. Step 6: Final answer
    x = 18,555,593.59

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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.