Home / 390,862,098.80-586,293,148.20-135,560,466.80

Finding the Fourth Proportional to 390,862,098.80, 586,293,148.20 and 135,560,466.80

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Solution

The fourth proportional to 390,862,098.80, 586,293,148.20 and 135,560,466.80 is: 203,340,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,862,098.80 : 586,293,148.20 = 135,560,466.80 : x
  2. Step 2: Convert to fraction form
    390,862,098.80/586,293,148.20 = 135,560,466.80/x
  3. Step 3: Cross multiply
    390,862,098.80x = 586,293,148.20 × 135,560,466.80
  4. Step 4: Simplify right side
    390,862,098.80x = 79,478,172,851,633,600
  5. Step 5: Solve for x
    x = 79,478,172,851,633,600/390,862,098.80
  6. Step 6: Final answer
    x = 203,340,700.20

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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.