Home / 51,686,811.80-71,328,278.64-28,482,769.16

Finding the Fourth Proportional to 51,686,811.80, 71,328,278.64 and 28,482,769.16

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Solution

The fourth proportional to 51,686,811.80, 71,328,278.64 and 28,482,769.16 is: 39,306,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,686,811.80 : 71,328,278.64 = 28,482,769.16 : x
  2. Step 2: Convert to fraction form
    51,686,811.80/71,328,278.64 = 28,482,769.16/x
  3. Step 3: Cross multiply
    51,686,811.80x = 71,328,278.64 × 28,482,769.16
  4. Step 4: Simplify right side
    51,686,811.80x = 2,031,626,895,083,278.75
  5. Step 5: Solve for x
    x = 2,031,626,895,083,278.75/51,686,811.80
  6. Step 6: Final answer
    x = 39,306,485.05

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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.