Home / 133,020,379.30-199,530,568.95-81,736,104.10

Finding the Fourth Proportional to 133,020,379.30, 199,530,568.95 and 81,736,104.10

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Solution

The fourth proportional to 133,020,379.30, 199,530,568.95 and 81,736,104.10 is: 122,604,156.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,020,379.30 : 199,530,568.95 = 81,736,104.10 : x
  2. Step 2: Convert to fraction form
    133,020,379.30/199,530,568.95 = 81,736,104.10/x
  3. Step 3: Cross multiply
    133,020,379.30x = 199,530,568.95 × 81,736,104.10
  4. Step 4: Simplify right side
    133,020,379.30x = 16,308,851,354,829,426
  5. Step 5: Solve for x
    x = 16,308,851,354,829,426/133,020,379.30
  6. Step 6: Final answer
    x = 122,604,156.15

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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.