Home / 21,011,061.56-31,522,683.74-8,712,741.34

Finding the Fourth Proportional to 21,011,061.56, 31,522,683.74 and 8,712,741.34

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Solution

The fourth proportional to 21,011,061.56, 31,522,683.74 and 8,712,741.34 is: 13,071,637.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,061.56 : 31,522,683.74 = 8,712,741.34 : x
  2. Step 2: Convert to fraction form
    21,011,061.56/31,522,683.74 = 8,712,741.34/x
  3. Step 3: Cross multiply
    21,011,061.56x = 31,522,683.74 × 8,712,741.34
  4. Step 4: Simplify right side
    21,011,061.56x = 274,648,989,765,083.47
  5. Step 5: Solve for x
    x = 274,648,989,765,083.47/21,011,061.56
  6. Step 6: Final answer
    x = 13,071,637.96

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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.