Home / 66,506,578.40-99,759,867.60-39,296,799.20

Finding the Fourth Proportional to 66,506,578.40, 99,759,867.60 and 39,296,799.20

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Solution

The fourth proportional to 66,506,578.40, 99,759,867.60 and 39,296,799.20 is: 58,945,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,506,578.40 : 99,759,867.60 = 39,296,799.20 : x
  2. Step 2: Convert to fraction form
    66,506,578.40/99,759,867.60 = 39,296,799.20/x
  3. Step 3: Cross multiply
    66,506,578.40x = 99,759,867.60 × 39,296,799.20
  4. Step 4: Simplify right side
    66,506,578.40x = 3,920,243,485,295,786
  5. Step 5: Solve for x
    x = 3,920,243,485,295,786/66,506,578.40
  6. Step 6: Final answer
    x = 58,945,198.80

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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.