Home / 112,218,116.80-168,243,194.40-61,157,790.40

Finding the Fourth Proportional to 112,218,116.80, 168,243,194.40 and 61,157,790.40

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Solution

The fourth proportional to 112,218,116.80, 168,243,194.40 and 61,157,790.40 is: 91,690,916.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,218,116.80 : 168,243,194.40 = 61,157,790.40 : x
  2. Step 2: Convert to fraction form
    112,218,116.80/168,243,194.40 = 61,157,790.40/x
  3. Step 3: Cross multiply
    112,218,116.80x = 168,243,194.40 × 61,157,790.40
  4. Step 4: Simplify right side
    112,218,116.80x = 10,289,382,019,341,654
  5. Step 5: Solve for x
    x = 10,289,382,019,341,654/112,218,116.80
  6. Step 6: Final answer
    x = 91,690,916.87

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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.