Home / 138,999,332.39-191,819,102.40-77,119,523.33

Finding the Fourth Proportional to 138,999,332.39, 191,819,102.40 and 77,119,523.33

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Solution

The fourth proportional to 138,999,332.39, 191,819,102.40 and 77,119,523.33 is: 106,424,955.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,999,332.39 : 191,819,102.40 = 77,119,523.33 : x
  2. Step 2: Convert to fraction form
    138,999,332.39/191,819,102.40 = 77,119,523.33/x
  3. Step 3: Cross multiply
    138,999,332.39x = 191,819,102.40 × 77,119,523.33
  4. Step 4: Simplify right side
    138,999,332.39x = 14,792,997,741,717,364
  5. Step 5: Solve for x
    x = 14,792,997,741,717,364/138,999,332.39
  6. Step 6: Final answer
    x = 106,424,955.34

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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.