Home / 13,069,892.66-18,035,895.39-7,189,153.68

Finding the Fourth Proportional to 13,069,892.66, 18,035,895.39 and 7,189,153.68

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Solution

The fourth proportional to 13,069,892.66, 18,035,895.39 and 7,189,153.68 is: 9,920,725.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,069,892.66 : 18,035,895.39 = 7,189,153.68 : x
  2. Step 2: Convert to fraction form
    13,069,892.66/18,035,895.39 = 7,189,153.68/x
  3. Step 3: Cross multiply
    13,069,892.66x = 18,035,895.39 × 7,189,153.68
  4. Step 4: Simplify right side
    13,069,892.66x = 129,662,823,715,113.53
  5. Step 5: Solve for x
    x = 129,662,823,715,113.53/13,069,892.66
  6. Step 6: Final answer
    x = 9,920,725.98

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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.