Home / 99,663,850.80-149,467,782.60-31,527,428.40

Finding the Fourth Proportional to 99,663,850.80, 149,467,782.60 and 31,527,428.40

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Solution

The fourth proportional to 99,663,850.80, 149,467,782.60 and 31,527,428.40 is: 47,282,287.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,663,850.80 : 149,467,782.60 = 31,527,428.40 : x
  2. Step 2: Convert to fraction form
    99,663,850.80/149,467,782.60 = 31,527,428.40/x
  3. Step 3: Cross multiply
    99,663,850.80x = 149,467,782.60 × 31,527,428.40
  4. Step 4: Simplify right side
    99,663,850.80x = 4,712,334,814,028,265
  5. Step 5: Solve for x
    x = 4,712,334,814,028,265/99,663,850.80
  6. Step 6: Final answer
    x = 47,282,287.17

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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.