Home / 111,921,569.79-154,452,379.02-64,906,518.57

Finding the Fourth Proportional to 111,921,569.79, 154,452,379.02 and 64,906,518.57

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Solution

The fourth proportional to 111,921,569.79, 154,452,379.02 and 64,906,518.57 is: 89,571,350.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,921,569.79 : 154,452,379.02 = 64,906,518.57 : x
  2. Step 2: Convert to fraction form
    111,921,569.79/154,452,379.02 = 64,906,518.57/x
  3. Step 3: Cross multiply
    111,921,569.79x = 154,452,379.02 × 64,906,518.57
  4. Step 4: Simplify right side
    111,921,569.79x = 10,024,966,207,042,310
  5. Step 5: Solve for x
    x = 10,024,966,207,042,310/111,921,569.79
  6. Step 6: Final answer
    x = 89,571,350.95

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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.