Home / 13,768,687.40-19,000,807.88-7,657,115.90

Finding the Fourth Proportional to 13,768,687.40, 19,000,807.88 and 7,657,115.90

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Solution

The fourth proportional to 13,768,687.40, 19,000,807.88 and 7,657,115.90 is: 10,566,830.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,768,687.40 : 19,000,807.88 = 7,657,115.90 : x
  2. Step 2: Convert to fraction form
    13,768,687.40/19,000,807.88 = 7,657,115.90/x
  3. Step 3: Cross multiply
    13,768,687.40x = 19,000,807.88 × 7,657,115.90
  4. Step 4: Simplify right side
    13,768,687.40x = 145,491,387,997,503.66
  5. Step 5: Solve for x
    x = 145,491,387,997,503.66/13,768,687.40
  6. Step 6: Final answer
    x = 10,566,830.65

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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.