Home / 213,246,031.85-319,869,047.78-178,808,655.05

Finding the Fourth Proportional to 213,246,031.85, 319,869,047.78 and 178,808,655.05

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Solution

The fourth proportional to 213,246,031.85, 319,869,047.78 and 178,808,655.05 is: 268,212,982.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,246,031.85 : 319,869,047.78 = 178,808,655.05 : x
  2. Step 2: Convert to fraction form
    213,246,031.85/319,869,047.78 = 178,808,655.05/x
  3. Step 3: Cross multiply
    213,246,031.85x = 319,869,047.78 × 178,808,655.05
  4. Step 4: Simplify right side
    213,246,031.85x = 57,195,354,224,771,944
  5. Step 5: Solve for x
    x = 57,195,354,224,771,944/213,246,031.85
  6. Step 6: Final answer
    x = 268,212,982.58

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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.