Home / 113,570,521.40-170,355,782.10-81,321,894.20

Finding the Fourth Proportional to 113,570,521.40, 170,355,782.10 and 81,321,894.20

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Solution

The fourth proportional to 113,570,521.40, 170,355,782.10 and 81,321,894.20 is: 121,982,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,570,521.40 : 170,355,782.10 = 81,321,894.20 : x
  2. Step 2: Convert to fraction form
    113,570,521.40/170,355,782.10 = 81,321,894.20/x
  3. Step 3: Cross multiply
    113,570,521.40x = 170,355,782.10 × 81,321,894.20
  4. Step 4: Simplify right side
    113,570,521.40x = 13,853,654,888,294,454
  5. Step 5: Solve for x
    x = 13,853,654,888,294,454/113,570,521.40
  6. Step 6: Final answer
    x = 121,982,841.30

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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.