Home / 15,179,741,740.28-20,946,899,857.74-9,238,637,617.40

Finding the Fourth Proportional to 15,179,741,740.28, 20,946,899,857.74 and 9,238,637,617.40

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Solution

The fourth proportional to 15,179,741,740.28, 20,946,899,857.74 and 9,238,637,617.40 is: 12,748,623,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179,741,740.28 : 20,946,899,857.74 = 9,238,637,617.40 : x
  2. Step 2: Convert to fraction form
    15,179,741,740.28/20,946,899,857.74 = 9,238,637,617.40/x
  3. Step 3: Cross multiply
    15,179,741,740.28x = 20,946,899,857.74 × 9,238,637,617.40
  4. Step 4: Simplify right side
    15,179,741,740.28x = 193,520,816,993,627,471,872
  5. Step 5: Solve for x
    x = 193,520,816,993,627,471,872/15,179,741,740.28
  6. Step 6: Final answer
    x = 12,748,623,810.91

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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.