Home / 21,160,273.20-31,740,409.80-13,602,001.20

Finding the Fourth Proportional to 21,160,273.20, 31,740,409.80 and 13,602,001.20

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Solution

The fourth proportional to 21,160,273.20, 31,740,409.80 and 13,602,001.20 is: 20,403,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,160,273.20 : 31,740,409.80 = 13,602,001.20 : x
  2. Step 2: Convert to fraction form
    21,160,273.20/31,740,409.80 = 13,602,001.20/x
  3. Step 3: Cross multiply
    21,160,273.20x = 31,740,409.80 × 13,602,001.20
  4. Step 4: Simplify right side
    21,160,273.20x = 431,733,092,188,091.75
  5. Step 5: Solve for x
    x = 431,733,092,188,091.75/21,160,273.20
  6. Step 6: Final answer
    x = 20,403,001.80

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1.5x scale

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.