Home / 109,716,643.20-164,574,964.80-99,672,408.30

Finding the Fourth Proportional to 109,716,643.20, 164,574,964.80 and 99,672,408.30

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Solution

The fourth proportional to 109,716,643.20, 164,574,964.80 and 99,672,408.30 is: 149,508,612.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,716,643.20 : 164,574,964.80 = 99,672,408.30 : x
  2. Step 2: Convert to fraction form
    109,716,643.20/164,574,964.80 = 99,672,408.30/x
  3. Step 3: Cross multiply
    109,716,643.20x = 164,574,964.80 × 99,672,408.30
  4. Step 4: Simplify right side
    109,716,643.20x = 16,403,583,087,503,728
  5. Step 5: Solve for x
    x = 16,403,583,087,503,728/109,716,643.20
  6. Step 6: Final answer
    x = 149,508,612.45

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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.