Home / 213,655,220.60-320,482,830.90-199,322,497.40

Finding the Fourth Proportional to 213,655,220.60, 320,482,830.90 and 199,322,497.40

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Solution

The fourth proportional to 213,655,220.60, 320,482,830.90 and 199,322,497.40 is: 298,983,746.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,655,220.60 : 320,482,830.90 = 199,322,497.40 : x
  2. Step 2: Convert to fraction form
    213,655,220.60/320,482,830.90 = 199,322,497.40/x
  3. Step 3: Cross multiply
    213,655,220.60x = 320,482,830.90 × 199,322,497.40
  4. Step 4: Simplify right side
    213,655,220.60x = 63,879,438,228,809,888
  5. Step 5: Solve for x
    x = 63,879,438,228,809,888/213,655,220.60
  6. Step 6: Final answer
    x = 298,983,746.10

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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.