Home / 121,979,275.83-168,333,808.10-66,974,651.19

Finding the Fourth Proportional to 121,979,275.83, 168,333,808.10 and 66,974,651.19

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Solution

The fourth proportional to 121,979,275.83, 168,333,808.10 and 66,974,651.19 is: 92,426,340.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,979,275.83 : 168,333,808.10 = 66,974,651.19 : x
  2. Step 2: Convert to fraction form
    121,979,275.83/168,333,808.10 = 66,974,651.19/x
  3. Step 3: Cross multiply
    121,979,275.83x = 168,333,808.10 × 66,974,651.19
  4. Step 4: Simplify right side
    121,979,275.83x = 11,274,098,080,647,022
  5. Step 5: Solve for x
    x = 11,274,098,080,647,022/121,979,275.83
  6. Step 6: Final answer
    x = 92,426,340.49

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1.5x scale

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.