Home / 214,516,098.80-321,774,148.20-78,205,929.20

Finding the Fourth Proportional to 214,516,098.80, 321,774,148.20 and 78,205,929.20

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Solution

The fourth proportional to 214,516,098.80, 321,774,148.20 and 78,205,929.20 is: 117,308,893.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,516,098.80 : 321,774,148.20 = 78,205,929.20 : x
  2. Step 2: Convert to fraction form
    214,516,098.80/321,774,148.20 = 78,205,929.20/x
  3. Step 3: Cross multiply
    214,516,098.80x = 321,774,148.20 × 78,205,929.20
  4. Step 4: Simplify right side
    214,516,098.80x = 25,164,646,252,519,508
  5. Step 5: Solve for x
    x = 25,164,646,252,519,508/214,516,098.80
  6. Step 6: Final answer
    x = 117,308,893.80

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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.