Home / 5,178,929,457.13-7,146,909,208.35-2,890,037,667.73

Finding the Fourth Proportional to 5,178,929,457.13, 7,146,909,208.35 and 2,890,037,667.73

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Solution

The fourth proportional to 5,178,929,457.13, 7,146,909,208.35 and 2,890,037,667.73 is: 3,988,244,480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,929,457.13 : 7,146,909,208.35 = 2,890,037,667.73 : x
  2. Step 2: Convert to fraction form
    5,178,929,457.13/7,146,909,208.35 = 2,890,037,667.73/x
  3. Step 3: Cross multiply
    5,178,929,457.13x = 7,146,909,208.35 × 2,890,037,667.73
  4. Step 4: Simplify right side
    5,178,929,457.13x = 20,654,836,819,977,895,936
  5. Step 5: Solve for x
    x = 20,654,836,819,977,895,936/5,178,929,457.13
  6. Step 6: Final answer
    x = 3,988,244,480.05

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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.