Home / 18,676,681.90-28,015,881.24-5,721,903.56

Finding the Fourth Proportional to 18,676,681.90, 28,015,881.24 and 5,721,903.56

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Solution

The fourth proportional to 18,676,681.90, 28,015,881.24 and 5,721,903.56 is: 8,583,118.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,676,681.90 : 28,015,881.24 = 5,721,903.56 : x
  2. Step 2: Convert to fraction form
    18,676,681.90/28,015,881.24 = 5,721,903.56/x
  3. Step 3: Cross multiply
    18,676,681.90x = 28,015,881.24 × 5,721,903.56
  4. Step 4: Simplify right side
    18,676,681.90x = 160,304,170,603,693.19
  5. Step 5: Solve for x
    x = 160,304,170,603,693.19/18,676,681.90
  6. Step 6: Final answer
    x = 8,583,118.32

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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.