Home / 18,696,156.96-28,047,871.35-7,180,781.88

Finding the Fourth Proportional to 18,696,156.96, 28,047,871.35 and 7,180,781.88

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Solution

The fourth proportional to 18,696,156.96, 28,047,871.35 and 7,180,781.88 is: 10,772,569.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,156.96 : 28,047,871.35 = 7,180,781.88 : x
  2. Step 2: Convert to fraction form
    18,696,156.96/28,047,871.35 = 7,180,781.88/x
  3. Step 3: Cross multiply
    18,696,156.96x = 28,047,871.35 × 7,180,781.88
  4. Step 4: Simplify right side
    18,696,156.96x = 201,405,646,362,651.16
  5. Step 5: Solve for x
    x = 201,405,646,362,651.16/18,696,156.96
  6. Step 6: Final answer
    x = 10,772,569.29

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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.