Home / 139,509,390.69-209,072,767.27-88,299,998.37

Finding the Fourth Proportional to 139,509,390.69, 209,072,767.27 and 88,299,998.37

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Solution

The fourth proportional to 139,509,390.69, 209,072,767.27 and 88,299,998.37 is: 132,328,905.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,509,390.69 : 209,072,767.27 = 88,299,998.37 : x
  2. Step 2: Convert to fraction form
    139,509,390.69/209,072,767.27 = 88,299,998.37/x
  3. Step 3: Cross multiply
    139,509,390.69x = 209,072,767.27 × 88,299,998.37
  4. Step 4: Simplify right side
    139,509,390.69x = 18,461,125,009,152,392
  5. Step 5: Solve for x
    x = 18,461,125,009,152,392/139,509,390.69
  6. Step 6: Final answer
    x = 132,328,905.73

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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.