Home / 72,256,349.56-99,713,860.37-39,216,599.72

Finding the Fourth Proportional to 72,256,349.56, 99,713,860.37 and 39,216,599.72

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Solution

The fourth proportional to 72,256,349.56, 99,713,860.37 and 39,216,599.72 is: 54,118,960.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,256,349.56 : 99,713,860.37 = 39,216,599.72 : x
  2. Step 2: Convert to fraction form
    72,256,349.56/99,713,860.37 = 39,216,599.72/x
  3. Step 3: Cross multiply
    72,256,349.56x = 99,713,860.37 × 39,216,599.72
  4. Step 4: Simplify right side
    72,256,349.56x = 3,910,438,548,470,178
  5. Step 5: Solve for x
    x = 3,910,438,548,470,178/72,256,349.56
  6. Step 6: Final answer
    x = 54,118,960.79

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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.