Home / 31,507,347.90-47,261,021.85-20,160,608.70

Finding the Fourth Proportional to 31,507,347.90, 47,261,021.85 and 20,160,608.70

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Solution

The fourth proportional to 31,507,347.90, 47,261,021.85 and 20,160,608.70 is: 30,240,913.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507,347.90 : 47,261,021.85 = 20,160,608.70 : x
  2. Step 2: Convert to fraction form
    31,507,347.90/47,261,021.85 = 20,160,608.70/x
  3. Step 3: Cross multiply
    31,507,347.90x = 47,261,021.85 × 20,160,608.70
  4. Step 4: Simplify right side
    31,507,347.90x = 952,810,968,280,000.12
  5. Step 5: Solve for x
    x = 952,810,968,280,000.12/31,507,347.90
  6. Step 6: Final answer
    x = 30,240,913.05

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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.