Home / 122,015,087.47-183,022,476.65-31,138,678.51

Finding the Fourth Proportional to 122,015,087.47, 183,022,476.65 and 31,138,678.51

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Solution

The fourth proportional to 122,015,087.47, 183,022,476.65 and 31,138,678.51 is: 46,707,978.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,015,087.47 : 183,022,476.65 = 31,138,678.51 : x
  2. Step 2: Convert to fraction form
    122,015,087.47/183,022,476.65 = 31,138,678.51/x
  3. Step 3: Cross multiply
    122,015,087.47x = 183,022,476.65 × 31,138,678.51
  4. Step 4: Simplify right side
    122,015,087.47x = 5,699,078,060,352,639
  5. Step 5: Solve for x
    x = 5,699,078,060,352,639/122,015,087.47
  6. Step 6: Final answer
    x = 46,707,978.32

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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.