Home / 30,191,331.30-45,251,567.55-12,919,498.80

Finding the Fourth Proportional to 30,191,331.30, 45,251,567.55 and 12,919,498.80

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Solution

The fourth proportional to 30,191,331.30, 45,251,567.55 and 12,919,498.80 is: 19,364,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,191,331.30 : 45,251,567.55 = 12,919,498.80 : x
  2. Step 2: Convert to fraction form
    30,191,331.30/45,251,567.55 = 12,919,498.80/x
  3. Step 3: Cross multiply
    30,191,331.30x = 45,251,567.55 × 12,919,498.80
  4. Step 4: Simplify right side
    30,191,331.30x = 584,627,572,660,343.88
  5. Step 5: Solve for x
    x = 584,627,572,660,343.88/30,191,331.30
  6. Step 6: Final answer
    x = 19,364,087.22

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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.