Home / 168,176,769.40-252,328,139.70-66,014,126.20

Finding the Fourth Proportional to 168,176,769.40, 252,328,139.70 and 66,014,126.20

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Solution

The fourth proportional to 168,176,769.40, 252,328,139.70 and 66,014,126.20 is: 99,045,912.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,176,769.40 : 252,328,139.70 = 66,014,126.20 : x
  2. Step 2: Convert to fraction form
    168,176,769.40/252,328,139.70 = 66,014,126.20/x
  3. Step 3: Cross multiply
    168,176,769.40x = 252,328,139.70 × 66,014,126.20
  4. Step 4: Simplify right side
    168,176,769.40x = 16,657,221,657,967,030
  5. Step 5: Solve for x
    x = 16,657,221,657,967,030/168,176,769.40
  6. Step 6: Final answer
    x = 99,045,912.92

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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.