Home / 20,458,931.52-28,233,186.40-11,291,574.08

Finding the Fourth Proportional to 20,458,931.52, 28,233,186.40 and 11,291,574.08

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Solution

The fourth proportional to 20,458,931.52, 28,233,186.40 and 11,291,574.08 is: 15,582,295.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,931.52 : 28,233,186.40 = 11,291,574.08 : x
  2. Step 2: Convert to fraction form
    20,458,931.52/28,233,186.40 = 11,291,574.08/x
  3. Step 3: Cross multiply
    20,458,931.52x = 28,233,186.40 × 11,291,574.08
  4. Step 4: Simplify right side
    20,458,931.52x = 318,797,115,750,048.50
  5. Step 5: Solve for x
    x = 318,797,115,750,048.50/20,458,931.52
  6. Step 6: Final answer
    x = 15,582,295.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.