Home / 31,536,278.40-47,304,417.60-8,817,139.20

Finding the Fourth Proportional to 31,536,278.40, 47,304,417.60 and 8,817,139.20

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Solution

The fourth proportional to 31,536,278.40, 47,304,417.60 and 8,817,139.20 is: 13,225,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,536,278.40 : 47,304,417.60 = 8,817,139.20 : x
  2. Step 2: Convert to fraction form
    31,536,278.40/47,304,417.60 = 8,817,139.20/x
  3. Step 3: Cross multiply
    31,536,278.40x = 47,304,417.60 × 8,817,139.20
  4. Step 4: Simplify right side
    31,536,278.40x = 417,089,634,754,129.88
  5. Step 5: Solve for x
    x = 417,089,634,754,129.88/31,536,278.40
  6. Step 6: Final answer
    x = 13,225,708.80

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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.