Home / 138,973,326,348.30-191,772,665,333.05-77,993,916,458.53

Finding the Fourth Proportional to 138,973,326,348.30, 191,772,665,333.05 and 77,993,916,458.53

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Solution

The fourth proportional to 138,973,326,348.30, 191,772,665,333.05 and 77,993,916,458.53 is: 107,625,697,909.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,973,326,348.30 : 191,772,665,333.05 = 77,993,916,458.53 : x
  2. Step 2: Convert to fraction form
    138,973,326,348.30/191,772,665,333.05 = 77,993,916,458.53/x
  3. Step 3: Cross multiply
    138,973,326,348.30x = 191,772,665,333.05 × 77,993,916,458.53
  4. Step 4: Simplify right side
    138,973,326,348.30x = 14,957,101,239,014,573,211,648
  5. Step 5: Solve for x
    x = 14,957,101,239,014,573,211,648/138,973,326,348.30
  6. Step 6: Final answer
    x = 107,625,697,909.31

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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.