Home / 86,227,400.40-129,341,100.60-74,889,992.40

Finding the Fourth Proportional to 86,227,400.40, 129,341,100.60 and 74,889,992.40

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Solution

The fourth proportional to 86,227,400.40, 129,341,100.60 and 74,889,992.40 is: 112,334,988.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,227,400.40 : 129,341,100.60 = 74,889,992.40 : x
  2. Step 2: Convert to fraction form
    86,227,400.40/129,341,100.60 = 74,889,992.40/x
  3. Step 3: Cross multiply
    86,227,400.40x = 129,341,100.60 × 74,889,992.40
  4. Step 4: Simplify right side
    86,227,400.40x = 9,686,354,040,941,636
  5. Step 5: Solve for x
    x = 9,686,354,040,941,636/86,227,400.40
  6. Step 6: Final answer
    x = 112,334,988.60

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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.