Home / 209,992,079.71-289,745,807.84-120,666,764.29

Finding the Fourth Proportional to 209,992,079.71, 289,745,807.84 and 120,666,764.29

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Solution

The fourth proportional to 209,992,079.71, 289,745,807.84 and 120,666,764.29 is: 166,495,275.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,992,079.71 : 289,745,807.84 = 120,666,764.29 : x
  2. Step 2: Convert to fraction form
    209,992,079.71/289,745,807.84 = 120,666,764.29/x
  3. Step 3: Cross multiply
    209,992,079.71x = 289,745,807.84 × 120,666,764.29
  4. Step 4: Simplify right side
    209,992,079.71x = 34,962,689,097,468,048
  5. Step 5: Solve for x
    x = 34,962,689,097,468,048/209,992,079.71
  6. Step 6: Final answer
    x = 166,495,275.18

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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.