Home / 12,109,068.40-18,143,048.40-7,306,666.60

Finding the Fourth Proportional to 12,109,068.40, 18,143,048.40 and 7,306,666.60

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Solution

The fourth proportional to 12,109,068.40, 18,143,048.40 and 7,306,666.60 is: 10,947,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,068.40 : 18,143,048.40 = 7,306,666.60 : x
  2. Step 2: Convert to fraction form
    12,109,068.40/18,143,048.40 = 7,306,666.60/x
  3. Step 3: Cross multiply
    12,109,068.40x = 18,143,048.40 × 7,306,666.60
  4. Step 4: Simplify right side
    12,109,068.40x = 132,565,205,766,463.42
  5. Step 5: Solve for x
    x = 132,565,205,766,463.42/12,109,068.40
  6. Step 6: Final answer
    x = 10,947,597.40

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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.