Home / 2,154,786.95-2,973,628.89-1,187,951.87

Finding the Fourth Proportional to 2,154,786.95, 2,973,628.89 and 1,187,951.87

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Solution

The fourth proportional to 2,154,786.95, 2,973,628.89 and 1,187,951.87 is: 1,639,386.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,154,786.95 : 2,973,628.89 = 1,187,951.87 : x
  2. Step 2: Convert to fraction form
    2,154,786.95/2,973,628.89 = 1,187,951.87/x
  3. Step 3: Cross multiply
    2,154,786.95x = 2,973,628.89 × 1,187,951.87
  4. Step 4: Simplify right side
    2,154,786.95x = 3,532,527,985,693.38
  5. Step 5: Solve for x
    x = 3,532,527,985,693.38/2,154,786.95
  6. Step 6: Final answer
    x = 1,639,386.20

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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.