Home / 12,953,458.20-19,430,187.30-9,171,211.80

Finding the Fourth Proportional to 12,953,458.20, 19,430,187.30 and 9,171,211.80

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Solution

The fourth proportional to 12,953,458.20, 19,430,187.30 and 9,171,211.80 is: 13,756,817.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,458.20 : 19,430,187.30 = 9,171,211.80 : x
  2. Step 2: Convert to fraction form
    12,953,458.20/19,430,187.30 = 9,171,211.80/x
  3. Step 3: Cross multiply
    12,953,458.20x = 19,430,187.30 × 9,171,211.80
  4. Step 4: Simplify right side
    12,953,458.20x = 178,198,363,041,970.16
  5. Step 5: Solve for x
    x = 178,198,363,041,970.16/12,953,458.20
  6. Step 6: Final answer
    x = 13,756,817.70

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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.