Home / 82,578,172.80-113,965,139.77-45,415,001.90

Finding the Fourth Proportional to 82,578,172.80, 113,965,139.77 and 45,415,001.90

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Solution

The fourth proportional to 82,578,172.80, 113,965,139.77 and 45,415,001.90 is: 62,676,696.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,578,172.80 : 113,965,139.77 = 45,415,001.90 : x
  2. Step 2: Convert to fraction form
    82,578,172.80/113,965,139.77 = 45,415,001.90/x
  3. Step 3: Cross multiply
    82,578,172.80x = 113,965,139.77 × 45,415,001.90
  4. Step 4: Simplify right side
    82,578,172.80x = 5,175,727,039,188,315
  5. Step 5: Solve for x
    x = 5,175,727,039,188,315/82,578,172.80
  6. Step 6: Final answer
    x = 62,676,696.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.