Home / 132,129,815.98-198,196,716.90-45,870,962.98

Finding the Fourth Proportional to 132,129,815.98, 198,196,716.90 and 45,870,962.98

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Solution

The fourth proportional to 132,129,815.98, 198,196,716.90 and 45,870,962.98 is: 68,807,136.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,129,815.98 : 198,196,716.90 = 45,870,962.98 : x
  2. Step 2: Convert to fraction form
    132,129,815.98/198,196,716.90 = 45,870,962.98/x
  3. Step 3: Cross multiply
    132,129,815.98x = 198,196,716.90 × 45,870,962.98
  4. Step 4: Simplify right side
    132,129,815.98x = 9,091,474,263,677,440
  5. Step 5: Solve for x
    x = 9,091,474,263,677,440/132,129,815.98
  6. Step 6: Final answer
    x = 68,807,136.35

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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.