Home / 81,897,319.23-122,607,577.35-42,943,399.71

Finding the Fourth Proportional to 81,897,319.23, 122,607,577.35 and 42,943,399.71

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Solution

The fourth proportional to 81,897,319.23, 122,607,577.35 and 42,943,399.71 is: 64,290,092.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,897,319.23 : 122,607,577.35 = 42,943,399.71 : x
  2. Step 2: Convert to fraction form
    81,897,319.23/122,607,577.35 = 42,943,399.71/x
  3. Step 3: Cross multiply
    81,897,319.23x = 122,607,577.35 × 42,943,399.71
  4. Step 4: Simplify right side
    81,897,319.23x = 5,265,186,201,615,792
  5. Step 5: Solve for x
    x = 5,265,186,201,615,792/81,897,319.23
  6. Step 6: Final answer
    x = 64,290,092.17

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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.