Home / 31,954,121.20-47,931,181.80-10,389,426.40

Finding the Fourth Proportional to 31,954,121.20, 47,931,181.80 and 10,389,426.40

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Solution

The fourth proportional to 31,954,121.20, 47,931,181.80 and 10,389,426.40 is: 15,584,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,954,121.20 : 47,931,181.80 = 10,389,426.40 : x
  2. Step 2: Convert to fraction form
    31,954,121.20/47,931,181.80 = 10,389,426.40/x
  3. Step 3: Cross multiply
    31,954,121.20x = 47,931,181.80 × 10,389,426.40
  4. Step 4: Simplify right side
    31,954,121.20x = 497,977,485,576,119.50
  5. Step 5: Solve for x
    x = 497,977,485,576,119.50/31,954,121.20
  6. Step 6: Final answer
    x = 15,584,139.60

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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.