Home / 81,389,422.40-122,225,851.20-43,125,670.40

Finding the Fourth Proportional to 81,389,422.40, 122,225,851.20 and 43,125,670.40

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Solution

The fourth proportional to 81,389,422.40, 122,225,851.20 and 43,125,670.40 is: 64,763,597.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,389,422.40 : 122,225,851.20 = 43,125,670.40 : x
  2. Step 2: Convert to fraction form
    81,389,422.40/122,225,851.20 = 43,125,670.40/x
  3. Step 3: Cross multiply
    81,389,422.40x = 122,225,851.20 × 43,125,670.40
  4. Step 4: Simplify right side
    81,389,422.40x = 5,271,071,773,210,644
  5. Step 5: Solve for x
    x = 5,271,071,773,210,644/81,389,422.40
  6. Step 6: Final answer
    x = 64,763,597.26

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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.