Home / 12,278,780.59-18,430,945.50-9,043,970.67

Finding the Fourth Proportional to 12,278,780.59, 18,430,945.50 and 9,043,970.67

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Solution

The fourth proportional to 12,278,780.59, 18,430,945.50 and 9,043,970.67 is: 13,575,365.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,780.59 : 18,430,945.50 = 9,043,970.67 : x
  2. Step 2: Convert to fraction form
    12,278,780.59/18,430,945.50 = 9,043,970.67/x
  3. Step 3: Cross multiply
    12,278,780.59x = 18,430,945.50 × 9,043,970.67
  4. Step 4: Simplify right side
    12,278,780.59x = 166,688,930,522,368.47
  5. Step 5: Solve for x
    x = 166,688,930,522,368.47/12,278,780.59
  6. Step 6: Final answer
    x = 13,575,365.18

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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.