Home / 99,668,814.80-149,503,222.20-61,205,608.40

Finding the Fourth Proportional to 99,668,814.80, 149,503,222.20 and 61,205,608.40

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Solution

The fourth proportional to 99,668,814.80, 149,503,222.20 and 61,205,608.40 is: 91,808,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,668,814.80 : 149,503,222.20 = 61,205,608.40 : x
  2. Step 2: Convert to fraction form
    99,668,814.80/149,503,222.20 = 61,205,608.40/x
  3. Step 3: Cross multiply
    99,668,814.80x = 149,503,222.20 × 61,205,608.40
  4. Step 4: Simplify right side
    99,668,814.80x = 9,150,435,672,511,386
  5. Step 5: Solve for x
    x = 9,150,435,672,511,386/99,668,814.80
  6. Step 6: Final answer
    x = 91,808,412.60

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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.