Home / 5,178,929,456.63-7,146,909,207.66-2,890,037,667.23

Finding the Fourth Proportional to 5,178,929,456.63, 7,146,909,207.66 and 2,890,037,667.23

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Solution

The fourth proportional to 5,178,929,456.63, 7,146,909,207.66 and 2,890,037,667.23 is: 3,988,244,479.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,929,456.63 : 7,146,909,207.66 = 2,890,037,667.23 : x
  2. Step 2: Convert to fraction form
    5,178,929,456.63/7,146,909,207.66 = 2,890,037,667.23/x
  3. Step 3: Cross multiply
    5,178,929,456.63x = 7,146,909,207.66 × 2,890,037,667.23
  4. Step 4: Simplify right side
    5,178,929,456.63x = 20,654,836,814,410,313,728
  5. Step 5: Solve for x
    x = 20,654,836,814,410,313,728/5,178,929,456.63
  6. Step 6: Final answer
    x = 3,988,244,479.36

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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.