Home / 199,315,428.90-298,973,143.35-91,820,004.90

Finding the Fourth Proportional to 199,315,428.90, 298,973,143.35 and 91,820,004.90

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Solution

The fourth proportional to 199,315,428.90, 298,973,143.35 and 91,820,004.90 is: 137,730,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,315,428.90 : 298,973,143.35 = 91,820,004.90 : x
  2. Step 2: Convert to fraction form
    199,315,428.90/298,973,143.35 = 91,820,004.90/x
  3. Step 3: Cross multiply
    199,315,428.90x = 298,973,143.35 × 91,820,004.90
  4. Step 4: Simplify right side
    199,315,428.90x = 27,451,715,487,365,408
  5. Step 5: Solve for x
    x = 27,451,715,487,365,408/199,315,428.90
  6. Step 6: Final answer
    x = 137,730,007.35

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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.