Home / 56,881,795.64-78,496,876.78-30,776,313.49

Finding the Fourth Proportional to 56,881,795.64, 78,496,876.78 and 30,776,313.49

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Solution

The fourth proportional to 56,881,795.64, 78,496,876.78 and 30,776,313.49 is: 42,471,311.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,881,795.64 : 78,496,876.78 = 30,776,313.49 : x
  2. Step 2: Convert to fraction form
    56,881,795.64/78,496,876.78 = 30,776,313.49/x
  3. Step 3: Cross multiply
    56,881,795.64x = 78,496,876.78 × 30,776,313.49
  4. Step 4: Simplify right side
    56,881,795.64x = 2,415,844,487,493,999
  5. Step 5: Solve for x
    x = 2,415,844,487,493,999/56,881,795.64
  6. Step 6: Final answer
    x = 42,471,311.96

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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.