Home / 138,973,326,350.32-191,772,665,335.81-77,993,916,460.54

Finding the Fourth Proportional to 138,973,326,350.32, 191,772,665,335.81 and 77,993,916,460.54

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Solution

The fourth proportional to 138,973,326,350.32, 191,772,665,335.81 and 77,993,916,460.54 is: 107,625,697,912.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,973,326,350.32 : 191,772,665,335.81 = 77,993,916,460.54 : x
  2. Step 2: Convert to fraction form
    138,973,326,350.32/191,772,665,335.81 = 77,993,916,460.54/x
  3. Step 3: Cross multiply
    138,973,326,350.32x = 191,772,665,335.81 × 77,993,916,460.54
  4. Step 4: Simplify right side
    138,973,326,350.32x = 14,957,101,239,615,302,402,048
  5. Step 5: Solve for x
    x = 14,957,101,239,615,302,402,048/138,973,326,350.32
  6. Step 6: Final answer
    x = 107,625,697,912.07

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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.