Home / 6,912,007.20-10,368,010.80-6,439,615.20

Finding the Fourth Proportional to 6,912,007.20, 10,368,010.80 and 6,439,615.20

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Solution

The fourth proportional to 6,912,007.20, 10,368,010.80 and 6,439,615.20 is: 9,659,422.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,007.20 : 10,368,010.80 = 6,439,615.20 : x
  2. Step 2: Convert to fraction form
    6,912,007.20/10,368,010.80 = 6,439,615.20/x
  3. Step 3: Cross multiply
    6,912,007.20x = 10,368,010.80 × 6,439,615.20
  4. Step 4: Simplify right side
    6,912,007.20x = 66,765,999,941,444.16
  5. Step 5: Solve for x
    x = 66,765,999,941,444.16/6,912,007.20
  6. Step 6: Final answer
    x = 9,659,422.80

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1.5x scale

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.