Home / 31,547,689,435.15-47,246,414,631.12-18,254,933,734.88

Finding the Fourth Proportional to 31,547,689,435.15, 47,246,414,631.12 and 18,254,933,734.88

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Solution

The fourth proportional to 31,547,689,435.15, 47,246,414,631.12 and 18,254,933,734.88 is: 27,338,933,016.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547,689,435.15 : 47,246,414,631.12 = 18,254,933,734.88 : x
  2. Step 2: Convert to fraction form
    31,547,689,435.15/47,246,414,631.12 = 18,254,933,734.88/x
  3. Step 3: Cross multiply
    31,547,689,435.15x = 47,246,414,631.12 × 18,254,933,734.88
  4. Step 4: Simplify right side
    31,547,689,435.15x = 862,480,168,301,902,299,136
  5. Step 5: Solve for x
    x = 862,480,168,301,902,299,136/31,547,689,435.15
  6. Step 6: Final answer
    x = 27,338,933,016.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.