Home / 99,651,846.30-149,477,769.45-90,564,205.20

Finding the Fourth Proportional to 99,651,846.30, 149,477,769.45 and 90,564,205.20

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Solution

The fourth proportional to 99,651,846.30, 149,477,769.45 and 90,564,205.20 is: 135,846,307.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,651,846.30 : 149,477,769.45 = 90,564,205.20 : x
  2. Step 2: Convert to fraction form
    99,651,846.30/149,477,769.45 = 90,564,205.20/x
  3. Step 3: Cross multiply
    99,651,846.30x = 149,477,769.45 × 90,564,205.20
  4. Step 4: Simplify right side
    99,651,846.30x = 13,537,335,385,308,090
  5. Step 5: Solve for x
    x = 13,537,335,385,308,090/99,651,846.30
  6. Step 6: Final answer
    x = 135,846,307.80

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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.