Home / 654,813,468.60-982,375,030.50-212,155,432.82

Finding the Fourth Proportional to 654,813,468.60, 982,375,030.50 and 212,155,432.82

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Solution

The fourth proportional to 654,813,468.60, 982,375,030.50 and 212,155,432.82 is: 318,283,312.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,813,468.60 : 982,375,030.50 = 212,155,432.82 : x
  2. Step 2: Convert to fraction form
    654,813,468.60/982,375,030.50 = 212,155,432.82/x
  3. Step 3: Cross multiply
    654,813,468.60x = 982,375,030.50 × 212,155,432.82
  4. Step 4: Simplify right side
    654,813,468.60x = 208,416,199,784,396,064
  5. Step 5: Solve for x
    x = 208,416,199,784,396,064/654,813,468.60
  6. Step 6: Final answer
    x = 318,283,312.39

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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.