Home / 20,736,032.10-31,104,048.15-18,720,492.90

Finding the Fourth Proportional to 20,736,032.10, 31,104,048.15 and 18,720,492.90

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Solution

The fourth proportional to 20,736,032.10, 31,104,048.15 and 18,720,492.90 is: 28,080,739.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,032.10 : 31,104,048.15 = 18,720,492.90 : x
  2. Step 2: Convert to fraction form
    20,736,032.10/31,104,048.15 = 18,720,492.90/x
  3. Step 3: Cross multiply
    20,736,032.10x = 31,104,048.15 × 18,720,492.90
  4. Step 4: Simplify right side
    20,736,032.10x = 582,283,112,553,333
  5. Step 5: Solve for x
    x = 582,283,112,553,333/20,736,032.10
  6. Step 6: Final answer
    x = 28,080,739.35

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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.