Home / 209,079,862.92-288,566,325.48-121,022,412.92

Finding the Fourth Proportional to 209,079,862.92, 288,566,325.48 and 121,022,412.92

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Solution

The fourth proportional to 209,079,862.92, 288,566,325.48 and 121,022,412.92 is: 167,031,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,079,862.92 : 288,566,325.48 = 121,022,412.92 : x
  2. Step 2: Convert to fraction form
    209,079,862.92/288,566,325.48 = 121,022,412.92/x
  3. Step 3: Cross multiply
    209,079,862.92x = 288,566,325.48 × 121,022,412.92
  4. Step 4: Simplify right side
    209,079,862.92x = 34,922,992,997,047,680
  5. Step 5: Solve for x
    x = 34,922,992,997,047,680/209,079,862.92
  6. Step 6: Final answer
    x = 167,031,834.20

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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.