Home / 20,736,020.10-31,104,030.15-19,980,192.90

Finding the Fourth Proportional to 20,736,020.10, 31,104,030.15 and 19,980,192.90

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Solution

The fourth proportional to 20,736,020.10, 31,104,030.15 and 19,980,192.90 is: 29,970,289.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,020.10 : 31,104,030.15 = 19,980,192.90 : x
  2. Step 2: Convert to fraction form
    20,736,020.10/31,104,030.15 = 19,980,192.90/x
  3. Step 3: Cross multiply
    20,736,020.10x = 31,104,030.15 × 19,980,192.90
  4. Step 4: Simplify right side
    20,736,020.10x = 621,464,522,364,415.88
  5. Step 5: Solve for x
    x = 621,464,522,364,415.88/20,736,020.10
  6. Step 6: Final answer
    x = 29,970,289.35

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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.