Home / 103,578,053.80-155,367,080.70-65,408,780.20

Finding the Fourth Proportional to 103,578,053.80, 155,367,080.70 and 65,408,780.20

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Solution

The fourth proportional to 103,578,053.80, 155,367,080.70 and 65,408,780.20 is: 98,113,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,578,053.80 : 155,367,080.70 = 65,408,780.20 : x
  2. Step 2: Convert to fraction form
    103,578,053.80/155,367,080.70 = 65,408,780.20/x
  3. Step 3: Cross multiply
    103,578,053.80x = 155,367,080.70 × 65,408,780.20
  4. Step 4: Simplify right side
    103,578,053.80x = 10,162,371,231,821,962
  5. Step 5: Solve for x
    x = 10,162,371,231,821,962/103,578,053.80
  6. Step 6: Final answer
    x = 98,113,170.30

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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.