Home / 75,645,239.40-113,467,859.10-66,717,030.60

Finding the Fourth Proportional to 75,645,239.40, 113,467,859.10 and 66,717,030.60

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Solution

The fourth proportional to 75,645,239.40, 113,467,859.10 and 66,717,030.60 is: 100,075,545.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,645,239.40 : 113,467,859.10 = 66,717,030.60 : x
  2. Step 2: Convert to fraction form
    75,645,239.40/113,467,859.10 = 66,717,030.60/x
  3. Step 3: Cross multiply
    75,645,239.40x = 113,467,859.10 × 66,717,030.60
  4. Step 4: Simplify right side
    75,645,239.40x = 7,570,238,627,691,188
  5. Step 5: Solve for x
    x = 7,570,238,627,691,188/75,645,239.40
  6. Step 6: Final answer
    x = 100,075,545.90

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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.