Home / 12,468,052.60-18,713,888.70-7,685,083.60

Finding the Fourth Proportional to 12,468,052.60, 18,713,888.70 and 7,685,083.60

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Solution

The fourth proportional to 12,468,052.60, 18,713,888.70 and 7,685,083.60 is: 11,534,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,468,052.60 : 18,713,888.70 = 7,685,083.60 : x
  2. Step 2: Convert to fraction form
    12,468,052.60/18,713,888.70 = 7,685,083.60/x
  3. Step 3: Cross multiply
    12,468,052.60x = 18,713,888.70 × 7,685,083.60
  4. Step 4: Simplify right side
    12,468,052.60x = 143,817,799,140,595.31
  5. Step 5: Solve for x
    x = 143,817,799,140,595.31/12,468,052.60
  6. Step 6: Final answer
    x = 11,534,904.75

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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.