Home / 20,707,244.40-31,060,866.60-7,921,167.60

Finding the Fourth Proportional to 20,707,244.40, 31,060,866.60 and 7,921,167.60

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Solution

The fourth proportional to 20,707,244.40, 31,060,866.60 and 7,921,167.60 is: 11,881,751.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707,244.40 : 31,060,866.60 = 7,921,167.60 : x
  2. Step 2: Convert to fraction form
    20,707,244.40/31,060,866.60 = 7,921,167.60/x
  3. Step 3: Cross multiply
    20,707,244.40x = 31,060,866.60 × 7,921,167.60
  4. Step 4: Simplify right side
    20,707,244.40x = 246,038,330,139,842.16
  5. Step 5: Solve for x
    x = 246,038,330,139,842.16/20,707,244.40
  6. Step 6: Final answer
    x = 11,881,751.40

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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.