Home / 60,031,578-90,025,308.80-20,628,656.72

Finding the Fourth Proportional to 60,031,578, 90,025,308.80 and 20,628,656.72

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Solution

The fourth proportional to 60,031,578, 90,025,308.80 and 20,628,656.72 is: 30,935,405.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,031,578 : 90,025,308.80 = 20,628,656.72 : x
  2. Step 2: Convert to fraction form
    60,031,578/90,025,308.80 = 20,628,656.72/x
  3. Step 3: Cross multiply
    60,031,578x = 90,025,308.80 × 20,628,656.72
  4. Step 4: Simplify right side
    60,031,578x = 1,857,101,191,347,195
  5. Step 5: Solve for x
    x = 1,857,101,191,347,195/60,031,578
  6. Step 6: Final answer
    x = 30,935,405.22

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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.