Home / 74,085,287.20-111,127,930.80-72,668,111.20

Finding the Fourth Proportional to 74,085,287.20, 111,127,930.80 and 72,668,111.20

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Solution

The fourth proportional to 74,085,287.20, 111,127,930.80 and 72,668,111.20 is: 109,002,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,085,287.20 : 111,127,930.80 = 72,668,111.20 : x
  2. Step 2: Convert to fraction form
    74,085,287.20/111,127,930.80 = 72,668,111.20/x
  3. Step 3: Cross multiply
    74,085,287.20x = 111,127,930.80 × 72,668,111.20
  4. Step 4: Simplify right side
    74,085,287.20x = 8,075,456,832,800,305
  5. Step 5: Solve for x
    x = 8,075,456,832,800,305/74,085,287.20
  6. Step 6: Final answer
    x = 109,002,166.80

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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.