Home / 122,472,001.80-183,708,002.70-68,612,315.40

Finding the Fourth Proportional to 122,472,001.80, 183,708,002.70 and 68,612,315.40

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Solution

The fourth proportional to 122,472,001.80, 183,708,002.70 and 68,612,315.40 is: 102,918,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,472,001.80 : 183,708,002.70 = 68,612,315.40 : x
  2. Step 2: Convert to fraction form
    122,472,001.80/183,708,002.70 = 68,612,315.40/x
  3. Step 3: Cross multiply
    122,472,001.80x = 183,708,002.70 × 68,612,315.40
  4. Step 4: Simplify right side
    122,472,001.80x = 12,604,631,422,756,452
  5. Step 5: Solve for x
    x = 12,604,631,422,756,452/122,472,001.80
  6. Step 6: Final answer
    x = 102,918,473.10

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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.