Home / 287,096,031.40-430,644,047.10-271,979,487.40

Finding the Fourth Proportional to 287,096,031.40, 430,644,047.10 and 271,979,487.40

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Solution

The fourth proportional to 287,096,031.40, 430,644,047.10 and 271,979,487.40 is: 407,969,231.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,096,031.40 : 430,644,047.10 = 271,979,487.40 : x
  2. Step 2: Convert to fraction form
    287,096,031.40/430,644,047.10 = 271,979,487.40/x
  3. Step 3: Cross multiply
    287,096,031.40x = 430,644,047.10 × 271,979,487.40
  4. Step 4: Simplify right side
    287,096,031.40x = 117,126,347,182,119,456
  5. Step 5: Solve for x
    x = 117,126,347,182,119,456/287,096,031.40
  6. Step 6: Final answer
    x = 407,969,231.10

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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.