Home / 77,530,199.79-106,992,393.16-42,724,135.76

Finding the Fourth Proportional to 77,530,199.79, 106,992,393.16 and 42,724,135.76

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Solution

The fourth proportional to 77,530,199.79, 106,992,393.16 and 42,724,135.76 is: 58,959,702.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,530,199.79 : 106,992,393.16 = 42,724,135.76 : x
  2. Step 2: Convert to fraction form
    77,530,199.79/106,992,393.16 = 42,724,135.76/x
  3. Step 3: Cross multiply
    77,530,199.79x = 106,992,393.16 × 42,724,135.76
  4. Step 4: Simplify right side
    77,530,199.79x = 4,571,157,530,655,135
  5. Step 5: Solve for x
    x = 4,571,157,530,655,135/77,530,199.79
  6. Step 6: Final answer
    x = 58,959,702.71

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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.