Home / 18,696,086.61-28,047,765.77-7,180,711.48

Finding the Fourth Proportional to 18,696,086.61, 28,047,765.77 and 7,180,711.48

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Solution

The fourth proportional to 18,696,086.61, 28,047,765.77 and 7,180,711.48 is: 10,772,463.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,086.61 : 28,047,765.77 = 7,180,711.48 : x
  2. Step 2: Convert to fraction form
    18,696,086.61/28,047,765.77 = 7,180,711.48/x
  3. Step 3: Cross multiply
    18,696,086.61x = 28,047,765.77 × 7,180,711.48
  4. Step 4: Simplify right side
    18,696,086.61x = 201,402,913,652,990.06
  5. Step 5: Solve for x
    x = 201,402,913,652,990.06/18,696,086.61
  6. Step 6: Final answer
    x = 10,772,463.66

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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.