Home / 113,386,803.40-170,080,205.10-77,107,097.80

Finding the Fourth Proportional to 113,386,803.40, 170,080,205.10 and 77,107,097.80

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Solution

The fourth proportional to 113,386,803.40, 170,080,205.10 and 77,107,097.80 is: 115,660,646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,386,803.40 : 170,080,205.10 = 77,107,097.80 : x
  2. Step 2: Convert to fraction form
    113,386,803.40/170,080,205.10 = 77,107,097.80/x
  3. Step 3: Cross multiply
    113,386,803.40x = 170,080,205.10 × 77,107,097.80
  4. Step 4: Simplify right side
    113,386,803.40x = 13,114,391,008,489,758
  5. Step 5: Solve for x
    x = 13,114,391,008,489,758/113,386,803.40
  6. Step 6: Final answer
    x = 115,660,646.70

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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.