Home / 122,015,087.72-183,022,477.02-31,138,678.76

Finding the Fourth Proportional to 122,015,087.72, 183,022,477.02 and 31,138,678.76

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Solution

The fourth proportional to 122,015,087.72, 183,022,477.02 and 31,138,678.76 is: 46,707,978.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,015,087.72 : 183,022,477.02 = 31,138,678.76 : x
  2. Step 2: Convert to fraction form
    122,015,087.72/183,022,477.02 = 31,138,678.76/x
  3. Step 3: Cross multiply
    122,015,087.72x = 183,022,477.02 × 31,138,678.76
  4. Step 4: Simplify right side
    122,015,087.72x = 5,699,078,117,785,263
  5. Step 5: Solve for x
    x = 5,699,078,117,785,263/122,015,087.72
  6. Step 6: Final answer
    x = 46,707,978.70

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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.