Home / 75,618,123.40-113,175,242.70-69,571,505.80

Finding the Fourth Proportional to 75,618,123.40, 113,175,242.70 and 69,571,505.80

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Solution

The fourth proportional to 75,618,123.40, 113,175,242.70 and 69,571,505.80 is: 104,125,462.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,618,123.40 : 113,175,242.70 = 69,571,505.80 : x
  2. Step 2: Convert to fraction form
    75,618,123.40/113,175,242.70 = 69,571,505.80/x
  3. Step 3: Cross multiply
    75,618,123.40x = 113,175,242.70 × 69,571,505.80
  4. Step 4: Simplify right side
    75,618,123.40x = 7,873,772,053,919,458
  5. Step 5: Solve for x
    x = 7,873,772,053,919,458/75,618,123.40
  6. Step 6: Final answer
    x = 104,125,462.26

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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.