Home / 2,778,123.40-4,158,890.70-1,655,614.60

Finding the Fourth Proportional to 2,778,123.40, 4,158,890.70 and 1,655,614.60

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Solution

The fourth proportional to 2,778,123.40, 4,158,890.70 and 1,655,614.60 is: 2,478,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778,123.40 : 4,158,890.70 = 1,655,614.60 : x
  2. Step 2: Convert to fraction form
    2,778,123.40/4,158,890.70 = 1,655,614.60/x
  3. Step 3: Cross multiply
    2,778,123.40x = 4,158,890.70 × 1,655,614.60
  4. Step 4: Simplify right side
    2,778,123.40x = 6,885,520,162,724.22
  5. Step 5: Solve for x
    x = 6,885,520,162,724.22/2,778,123.40
  6. Step 6: Final answer
    x = 2,478,478.88

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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.