Home / 199,306,645.40-298,959,968.10-91,811,221.40

Finding the Fourth Proportional to 199,306,645.40, 298,959,968.10 and 91,811,221.40

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Solution

The fourth proportional to 199,306,645.40, 298,959,968.10 and 91,811,221.40 is: 137,716,832.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,306,645.40 : 298,959,968.10 = 91,811,221.40 : x
  2. Step 2: Convert to fraction form
    199,306,645.40/298,959,968.10 = 91,811,221.40/x
  3. Step 3: Cross multiply
    199,306,645.40x = 298,959,968.10 × 91,811,221.40
  4. Step 4: Simplify right side
    199,306,645.40x = 27,447,879,820,966,040
  5. Step 5: Solve for x
    x = 27,447,879,820,966,040/199,306,645.40
  6. Step 6: Final answer
    x = 137,716,832.10

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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.