Home / 18,878,995,358.30-26,053,016,144.58-10,420,820,731.73

Finding the Fourth Proportional to 18,878,995,358.30, 26,053,016,144.58 and 10,420,820,731.73

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Solution

The fourth proportional to 18,878,995,358.30, 26,053,016,144.58 and 10,420,820,731.73 is: 14,380,734,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878,995,358.30 : 26,053,016,144.58 = 10,420,820,731.73 : x
  2. Step 2: Convert to fraction form
    18,878,995,358.30/26,053,016,144.58 = 10,420,820,731.73/x
  3. Step 3: Cross multiply
    18,878,995,358.30x = 26,053,016,144.58 × 10,420,820,731.73
  4. Step 4: Simplify right side
    18,878,995,358.30x = 271,493,810,763,405,426,688
  5. Step 5: Solve for x
    x = 271,493,810,763,405,426,688/18,878,995,358.30
  6. Step 6: Final answer
    x = 14,380,734,017.40

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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.