Home / 1,500,178.81-2,070,024.10-911,171.95

Finding the Fourth Proportional to 1,500,178.81, 2,070,024.10 and 911,171.95

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Solution

The fourth proportional to 1,500,178.81, 2,070,024.10 and 911,171.95 is: 1,257,282.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,178.81 : 2,070,024.10 = 911,171.95 : x
  2. Step 2: Convert to fraction form
    1,500,178.81/2,070,024.10 = 911,171.95/x
  3. Step 3: Cross multiply
    1,500,178.81x = 2,070,024.10 × 911,171.95
  4. Step 4: Simplify right side
    1,500,178.81x = 1,886,147,895,744.00
  5. Step 5: Solve for x
    x = 1,886,147,895,744.00/1,500,178.81
  6. Step 6: Final answer
    x = 1,257,282.05

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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.