Home / 138,675,000.75-191,377,516.65-76,795,339.32

Finding the Fourth Proportional to 138,675,000.75, 191,377,516.65 and 76,795,339.32

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Solution

The fourth proportional to 138,675,000.75, 191,377,516.65 and 76,795,339.32 is: 105,980,899.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,675,000.75 : 191,377,516.65 = 76,795,339.32 : x
  2. Step 2: Convert to fraction form
    138,675,000.75/191,377,516.65 = 76,795,339.32/x
  3. Step 3: Cross multiply
    138,675,000.75x = 191,377,516.65 × 76,795,339.32
  4. Step 4: Simplify right side
    138,675,000.75x = 14,696,901,329,355,698
  5. Step 5: Solve for x
    x = 14,696,901,329,355,698/138,675,000.75
  6. Step 6: Final answer
    x = 105,980,899.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.