Home / 39,312,021.60-58,968,032.40-20,180,145.60

Finding the Fourth Proportional to 39,312,021.60, 58,968,032.40 and 20,180,145.60

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Solution

The fourth proportional to 39,312,021.60, 58,968,032.40 and 20,180,145.60 is: 30,270,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,312,021.60 : 58,968,032.40 = 20,180,145.60 : x
  2. Step 2: Convert to fraction form
    39,312,021.60/58,968,032.40 = 20,180,145.60/x
  3. Step 3: Cross multiply
    39,312,021.60x = 58,968,032.40 × 20,180,145.60
  4. Step 4: Simplify right side
    39,312,021.60x = 1,189,983,479,577,517.50
  5. Step 5: Solve for x
    x = 1,189,983,479,577,517.50/39,312,021.60
  6. Step 6: Final answer
    x = 30,270,218.40

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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.