Home / 15,179,741,743.28-20,946,899,861.88-9,238,637,620.40

Finding the Fourth Proportional to 15,179,741,743.28, 20,946,899,861.88 and 9,238,637,620.40

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Solution

The fourth proportional to 15,179,741,743.28, 20,946,899,861.88 and 9,238,637,620.40 is: 12,748,623,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,179,741,743.28 : 20,946,899,861.88 = 9,238,637,620.40 : x
  2. Step 2: Convert to fraction form
    15,179,741,743.28/20,946,899,861.88 = 9,238,637,620.40/x
  3. Step 3: Cross multiply
    15,179,741,743.28x = 20,946,899,861.88 × 9,238,637,620.40
  4. Step 4: Simplify right side
    15,179,741,743.28x = 193,520,817,094,716,129,280
  5. Step 5: Solve for x
    x = 193,520,817,094,716,129,280/15,179,741,743.28
  6. Step 6: Final answer
    x = 12,748,623,815.05

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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.