Home / 74,371,520.80-111,557,281.20-66,081,041.20

Finding the Fourth Proportional to 74,371,520.80, 111,557,281.20 and 66,081,041.20

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Solution

The fourth proportional to 74,371,520.80, 111,557,281.20 and 66,081,041.20 is: 99,121,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,371,520.80 : 111,557,281.20 = 66,081,041.20 : x
  2. Step 2: Convert to fraction form
    74,371,520.80/111,557,281.20 = 66,081,041.20/x
  3. Step 3: Cross multiply
    74,371,520.80x = 111,557,281.20 × 66,081,041.20
  4. Step 4: Simplify right side
    74,371,520.80x = 7,371,821,295,137,186
  5. Step 5: Solve for x
    x = 7,371,821,295,137,186/74,371,520.80
  6. Step 6: Final answer
    x = 99,121,561.80

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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.