Home / 68,679,947.20-103,019,920.80-17,565,966.40

Finding the Fourth Proportional to 68,679,947.20, 103,019,920.80 and 17,565,966.40

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Solution

The fourth proportional to 68,679,947.20, 103,019,920.80 and 17,565,966.40 is: 26,348,949.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,679,947.20 : 103,019,920.80 = 17,565,966.40 : x
  2. Step 2: Convert to fraction form
    68,679,947.20/103,019,920.80 = 17,565,966.40/x
  3. Step 3: Cross multiply
    68,679,947.20x = 103,019,920.80 × 17,565,966.40
  4. Step 4: Simplify right side
    68,679,947.20x = 1,809,644,467,303,461
  5. Step 5: Solve for x
    x = 1,809,644,467,303,461/68,679,947.20
  6. Step 6: Final answer
    x = 26,348,949.60

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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.