Home / 13,354,221.80-20,031,332.70-12,557,060.30

Finding the Fourth Proportional to 13,354,221.80, 20,031,332.70 and 12,557,060.30

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Solution

The fourth proportional to 13,354,221.80, 20,031,332.70 and 12,557,060.30 is: 18,835,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,354,221.80 : 20,031,332.70 = 12,557,060.30 : x
  2. Step 2: Convert to fraction form
    13,354,221.80/20,031,332.70 = 12,557,060.30/x
  3. Step 3: Cross multiply
    13,354,221.80x = 20,031,332.70 × 12,557,060.30
  4. Step 4: Simplify right side
    13,354,221.80x = 251,534,652,603,261.81
  5. Step 5: Solve for x
    x = 251,534,652,603,261.81/13,354,221.80
  6. Step 6: Final answer
    x = 18,835,590.45

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Similar ratio
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1.5x scale

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.