Home / 116,978,442.39-161,435,295.36-64,767,478.77

Finding the Fourth Proportional to 116,978,442.39, 161,435,295.36 and 64,767,478.77

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Solution

The fourth proportional to 116,978,442.39, 161,435,295.36 and 64,767,478.77 is: 89,381,913.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,978,442.39 : 161,435,295.36 = 64,767,478.77 : x
  2. Step 2: Convert to fraction form
    116,978,442.39/161,435,295.36 = 64,767,478.77/x
  3. Step 3: Cross multiply
    116,978,442.39x = 161,435,295.36 × 64,767,478.77
  4. Step 4: Simplify right side
    116,978,442.39x = 10,455,757,064,957,480
  5. Step 5: Solve for x
    x = 10,455,757,064,957,480/116,978,442.39
  6. Step 6: Final answer
    x = 89,381,913.89

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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.