Home / 18,920,439.40-28,347,999.90-8,802,308.20

Finding the Fourth Proportional to 18,920,439.40, 28,347,999.90 and 8,802,308.20

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Solution

The fourth proportional to 18,920,439.40, 28,347,999.90 and 8,802,308.20 is: 13,188,268.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,920,439.40 : 28,347,999.90 = 8,802,308.20 : x
  2. Step 2: Convert to fraction form
    18,920,439.40/28,347,999.90 = 8,802,308.20/x
  3. Step 3: Cross multiply
    18,920,439.40x = 28,347,999.90 × 8,802,308.20
  4. Step 4: Simplify right side
    18,920,439.40x = 249,527,831,973,369.16
  5. Step 5: Solve for x
    x = 249,527,831,973,369.16/18,920,439.40
  6. Step 6: Final answer
    x = 13,188,268.34

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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.