Home / 12,911,954,111.72-17,817,946,135.94-7,195,934,377.64

Finding the Fourth Proportional to 12,911,954,111.72, 17,817,946,135.94 and 7,195,934,377.64

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Solution

The fourth proportional to 12,911,954,111.72, 17,817,946,135.94 and 7,195,934,377.64 is: 9,930,082,621.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911,954,111.72 : 17,817,946,135.94 = 7,195,934,377.64 : x
  2. Step 2: Convert to fraction form
    12,911,954,111.72/17,817,946,135.94 = 7,195,934,377.64/x
  3. Step 3: Cross multiply
    12,911,954,111.72x = 17,817,946,135.94 × 7,195,934,377.64
  4. Step 4: Simplify right side
    12,911,954,111.72x = 128,216,771,138,548,449,280
  5. Step 5: Solve for x
    x = 128,216,771,138,548,449,280/12,911,954,111.72
  6. Step 6: Final answer
    x = 9,930,082,621.82

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1.5x scale

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.