Home / 61,122,806.80-84,291,807.88-40,177,839.76

Finding the Fourth Proportional to 61,122,806.80, 84,291,807.88 and 40,177,839.76

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Solution

The fourth proportional to 61,122,806.80, 84,291,807.88 and 40,177,839.76 is: 55,407,513.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,122,806.80 : 84,291,807.88 = 40,177,839.76 : x
  2. Step 2: Convert to fraction form
    61,122,806.80/84,291,807.88 = 40,177,839.76/x
  3. Step 3: Cross multiply
    61,122,806.80x = 84,291,807.88 × 40,177,839.76
  4. Step 4: Simplify right side
    61,122,806.80x = 3,386,662,750,083,345
  5. Step 5: Solve for x
    x = 3,386,662,750,083,345/61,122,806.80
  6. Step 6: Final answer
    x = 55,407,513.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.