Home / 518,200,250,421.42-777,406,390,112.40-178,195,271,660.19

Finding the Fourth Proportional to 518,200,250,421.42, 777,406,390,112.40 and 178,195,271,660.19

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Solution

The fourth proportional to 518,200,250,421.42, 777,406,390,112.40 and 178,195,271,660.19 is: 267,329,363,047.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,200,250,421.42 : 777,406,390,112.40 = 178,195,271,660.19 : x
  2. Step 2: Convert to fraction form
    518,200,250,421.42/777,406,390,112.40 = 178,195,271,660.19/x
  3. Step 3: Cross multiply
    518,200,250,421.42x = 777,406,390,112.40 × 178,195,271,660.19
  4. Step 4: Simplify right side
    518,200,250,421.42x = 138,530,142,876,446,773,739,520
  5. Step 5: Solve for x
    x = 138,530,142,876,446,773,739,520/518,200,250,421.42
  6. Step 6: Final answer
    x = 267,329,363,047.95

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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.