Home / 199,328,886.80-298,671,403.80-112,810,000.40

Finding the Fourth Proportional to 199,328,886.80, 298,671,403.80 and 112,810,000.40

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Solution

The fourth proportional to 199,328,886.80, 298,671,403.80 and 112,810,000.40 is: 169,032,806.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,328,886.80 : 298,671,403.80 = 112,810,000.40 : x
  2. Step 2: Convert to fraction form
    199,328,886.80/298,671,403.80 = 112,810,000.40/x
  3. Step 3: Cross multiply
    199,328,886.80x = 298,671,403.80 × 112,810,000.40
  4. Step 4: Simplify right side
    199,328,886.80x = 33,693,121,182,146,564
  5. Step 5: Solve for x
    x = 33,693,121,182,146,564/199,328,886.80
  6. Step 6: Final answer
    x = 169,032,806.65

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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.