Home / 12,137,487.81-16,750,061.90-7,245,549.16

Finding the Fourth Proportional to 12,137,487.81, 16,750,061.90 and 7,245,549.16

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Solution

The fourth proportional to 12,137,487.81, 16,750,061.90 and 7,245,549.16 is: 9,999,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,487.81 : 16,750,061.90 = 7,245,549.16 : x
  2. Step 2: Convert to fraction form
    12,137,487.81/16,750,061.90 = 7,245,549.16/x
  3. Step 3: Cross multiply
    12,137,487.81x = 16,750,061.90 × 7,245,549.16
  4. Step 4: Simplify right side
    12,137,487.81x = 121,363,396,929,493.02
  5. Step 5: Solve for x
    x = 121,363,396,929,493.02/12,137,487.81
  6. Step 6: Final answer
    x = 9,999,054.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.