Home / 12,127,848.30-18,191,772.45-8,708,911.20

Finding the Fourth Proportional to 12,127,848.30, 18,191,772.45 and 8,708,911.20

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Solution

The fourth proportional to 12,127,848.30, 18,191,772.45 and 8,708,911.20 is: 13,063,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,848.30 : 18,191,772.45 = 8,708,911.20 : x
  2. Step 2: Convert to fraction form
    12,127,848.30/18,191,772.45 = 8,708,911.20/x
  3. Step 3: Cross multiply
    12,127,848.30x = 18,191,772.45 × 8,708,911.20
  4. Step 4: Simplify right side
    12,127,848.30x = 158,430,530,837,656.41
  5. Step 5: Solve for x
    x = 158,430,530,837,656.41/12,127,848.30
  6. Step 6: Final answer
    x = 13,063,366.80

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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.