Home / 423,280,263.77-634,922,536.13-132,122,979.89

Finding the Fourth Proportional to 423,280,263.77, 634,922,536.13 and 132,122,979.89

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Solution

The fourth proportional to 423,280,263.77, 634,922,536.13 and 132,122,979.89 is: 198,185,137.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,280,263.77 : 634,922,536.13 = 132,122,979.89 : x
  2. Step 2: Convert to fraction form
    423,280,263.77/634,922,536.13 = 132,122,979.89/x
  3. Step 3: Cross multiply
    423,280,263.77x = 634,922,536.13 × 132,122,979.89
  4. Step 4: Simplify right side
    423,280,263.77x = 83,887,857,474,729,408
  5. Step 5: Solve for x
    x = 83,887,857,474,729,408/423,280,263.77
  6. Step 6: Final answer
    x = 198,185,137.97

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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.