Home / 20,413,290.90-30,628,793.70-10,315,911.90

Finding the Fourth Proportional to 20,413,290.90, 30,628,793.70 and 10,315,911.90

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Solution

The fourth proportional to 20,413,290.90, 30,628,793.70 and 10,315,911.90 is: 15,478,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,413,290.90 : 30,628,793.70 = 10,315,911.90 : x
  2. Step 2: Convert to fraction form
    20,413,290.90/30,628,793.70 = 10,315,911.90/x
  3. Step 3: Cross multiply
    20,413,290.90x = 30,628,793.70 × 10,315,911.90
  4. Step 4: Simplify right side
    20,413,290.90x = 315,963,937,412,475.06
  5. Step 5: Solve for x
    x = 315,963,937,412,475.06/20,413,290.90
  6. Step 6: Final answer
    x = 15,478,343.94

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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.