Home / 31,507,019.20-47,331,387.60-30,302,419.60

Finding the Fourth Proportional to 31,507,019.20, 47,331,387.60 and 30,302,419.60

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Solution

The fourth proportional to 31,507,019.20, 47,331,387.60 and 30,302,419.60 is: 45,521,779.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,507,019.20 : 47,331,387.60 = 30,302,419.60 : x
  2. Step 2: Convert to fraction form
    31,507,019.20/47,331,387.60 = 30,302,419.60/x
  3. Step 3: Cross multiply
    31,507,019.20x = 47,331,387.60 × 30,302,419.60
  4. Step 4: Simplify right side
    31,507,019.20x = 1,434,255,567,305,437
  5. Step 5: Solve for x
    x = 1,434,255,567,305,437/31,507,019.20
  6. Step 6: Final answer
    x = 45,521,779.07

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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.