Home / 21,011,062.56-31,522,685.24-8,712,742.34

Finding the Fourth Proportional to 21,011,062.56, 31,522,685.24 and 8,712,742.34

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Solution

The fourth proportional to 21,011,062.56, 31,522,685.24 and 8,712,742.34 is: 13,071,639.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,062.56 : 31,522,685.24 = 8,712,742.34 : x
  2. Step 2: Convert to fraction form
    21,011,062.56/31,522,685.24 = 8,712,742.34/x
  3. Step 3: Cross multiply
    21,011,062.56x = 31,522,685.24 × 8,712,742.34
  4. Step 4: Simplify right side
    21,011,062.56x = 274,649,034,361,041.03
  5. Step 5: Solve for x
    x = 274,649,034,361,041.03/21,011,062.56
  6. Step 6: Final answer
    x = 13,071,639.46

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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.