Home / 112,018,563.20-167,654,596.80-81,225,603.20

Finding the Fourth Proportional to 112,018,563.20, 167,654,596.80 and 81,225,603.20

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Solution

The fourth proportional to 112,018,563.20, 167,654,596.80 and 81,225,603.20 is: 121,567,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,018,563.20 : 167,654,596.80 = 81,225,603.20 : x
  2. Step 2: Convert to fraction form
    112,018,563.20/167,654,596.80 = 81,225,603.20/x
  3. Step 3: Cross multiply
    112,018,563.20x = 167,654,596.80 × 81,225,603.20
  4. Step 4: Simplify right side
    112,018,563.20x = 13,617,845,754,332,792
  5. Step 5: Solve for x
    x = 13,617,845,754,332,792/112,018,563.20
  6. Step 6: Final answer
    x = 121,567,759.53

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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.