Home / 40,986,631.40-61,479,947.10-12,619,783.40

Finding the Fourth Proportional to 40,986,631.40, 61,479,947.10 and 12,619,783.40

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Solution

The fourth proportional to 40,986,631.40, 61,479,947.10 and 12,619,783.40 is: 18,929,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986,631.40 : 61,479,947.10 = 12,619,783.40 : x
  2. Step 2: Convert to fraction form
    40,986,631.40/61,479,947.10 = 12,619,783.40/x
  3. Step 3: Cross multiply
    40,986,631.40x = 61,479,947.10 × 12,619,783.40
  4. Step 4: Simplify right side
    40,986,631.40x = 775,863,615,845,458.12
  5. Step 5: Solve for x
    x = 775,863,615,845,458.12/40,986,631.40
  6. Step 6: Final answer
    x = 18,929,675.10

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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.