Home / 99,643,411.70-149,465,117.55-91,990,661.30

Finding the Fourth Proportional to 99,643,411.70, 149,465,117.55 and 91,990,661.30

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Solution

The fourth proportional to 99,643,411.70, 149,465,117.55 and 91,990,661.30 is: 137,985,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,643,411.70 : 149,465,117.55 = 91,990,661.30 : x
  2. Step 2: Convert to fraction form
    99,643,411.70/149,465,117.55 = 91,990,661.30/x
  3. Step 3: Cross multiply
    99,643,411.70x = 149,465,117.55 × 91,990,661.30
  4. Step 4: Simplify right side
    99,643,411.70x = 13,749,395,004,706,736
  5. Step 5: Solve for x
    x = 13,749,395,004,706,736/99,643,411.70
  6. Step 6: Final answer
    x = 137,985,991.95

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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.