Home / 77,493,001.76-116,239,662.56-72,757,862.45

Finding the Fourth Proportional to 77,493,001.76, 116,239,662.56 and 72,757,862.45

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Solution

The fourth proportional to 77,493,001.76, 116,239,662.56 and 72,757,862.45 is: 109,136,943.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,493,001.76 : 116,239,662.56 = 72,757,862.45 : x
  2. Step 2: Convert to fraction form
    77,493,001.76/116,239,662.56 = 72,757,862.45/x
  3. Step 3: Cross multiply
    77,493,001.76x = 116,239,662.56 × 72,757,862.45
  4. Step 4: Simplify right side
    77,493,001.76x = 8,457,349,379,774,895
  5. Step 5: Solve for x
    x = 8,457,349,379,774,895/77,493,001.76
  6. Step 6: Final answer
    x = 109,136,943.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.