Home / 99,651,812.30-149,477,718.45-90,564,171.20

Finding the Fourth Proportional to 99,651,812.30, 149,477,718.45 and 90,564,171.20

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Solution

The fourth proportional to 99,651,812.30, 149,477,718.45 and 90,564,171.20 is: 135,846,256.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,651,812.30 : 149,477,718.45 = 90,564,171.20 : x
  2. Step 2: Convert to fraction form
    99,651,812.30/149,477,718.45 = 90,564,171.20/x
  3. Step 3: Cross multiply
    99,651,812.30x = 149,477,718.45 × 90,564,171.20
  4. Step 4: Simplify right side
    99,651,812.30x = 13,537,325,684,291,198
  5. Step 5: Solve for x
    x = 13,537,325,684,291,198/99,651,812.30
  6. Step 6: Final answer
    x = 135,846,256.80

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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.