Home / 3,648,756.32-5,034,448.35-2,178,378.70

Finding the Fourth Proportional to 3,648,756.32, 5,034,448.35 and 2,178,378.70

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Solution

The fourth proportional to 3,648,756.32, 5,034,448.35 and 2,178,378.70 is: 3,005,663.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,648,756.32 : 5,034,448.35 = 2,178,378.70 : x
  2. Step 2: Convert to fraction form
    3,648,756.32/5,034,448.35 = 2,178,378.70/x
  3. Step 3: Cross multiply
    3,648,756.32x = 5,034,448.35 × 2,178,378.70
  4. Step 4: Simplify right side
    3,648,756.32x = 10,966,935,039,304.02
  5. Step 5: Solve for x
    x = 10,966,935,039,304.02/3,648,756.32
  6. Step 6: Final answer
    x = 3,005,663.87

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1.5x scale

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.