Home / 99,756,449.80-149,336,076.30-89,006,907.40

Finding the Fourth Proportional to 99,756,449.80, 149,336,076.30 and 89,006,907.40

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Solution

The fourth proportional to 99,756,449.80, 149,336,076.30 and 89,006,907.40 is: 133,243,939.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,756,449.80 : 149,336,076.30 = 89,006,907.40 : x
  2. Step 2: Convert to fraction form
    99,756,449.80/149,336,076.30 = 89,006,907.40/x
  3. Step 3: Cross multiply
    99,756,449.80x = 149,336,076.30 × 89,006,907.40
  4. Step 4: Simplify right side
    99,756,449.80x = 13,291,942,314,713,436
  5. Step 5: Solve for x
    x = 13,291,942,314,713,436/99,756,449.80
  6. Step 6: Final answer
    x = 133,243,939.03

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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.