Home / 20,866,836.60-31,300,254.90-20,111,009.40

Finding the Fourth Proportional to 20,866,836.60, 31,300,254.90 and 20,111,009.40

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Solution

The fourth proportional to 20,866,836.60, 31,300,254.90 and 20,111,009.40 is: 30,166,514.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866,836.60 : 31,300,254.90 = 20,111,009.40 : x
  2. Step 2: Convert to fraction form
    20,866,836.60/31,300,254.90 = 20,111,009.40/x
  3. Step 3: Cross multiply
    20,866,836.60x = 31,300,254.90 × 20,111,009.40
  4. Step 4: Simplify right side
    20,866,836.60x = 629,479,720,516,296
  5. Step 5: Solve for x
    x = 629,479,720,516,296/20,866,836.60
  6. Step 6: Final answer
    x = 30,166,514.10

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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.