Home / 79,178,911.29-109,228,068.99-68,710,234.36

Finding the Fourth Proportional to 79,178,911.29, 109,228,068.99 and 68,710,234.36

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Solution

The fourth proportional to 79,178,911.29, 109,228,068.99 and 68,710,234.36 is: 94,786,428.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,178,911.29 : 109,228,068.99 = 68,710,234.36 : x
  2. Step 2: Convert to fraction form
    79,178,911.29/109,228,068.99 = 68,710,234.36/x
  3. Step 3: Cross multiply
    79,178,911.29x = 109,228,068.99 × 68,710,234.36
  4. Step 4: Simplify right side
    79,178,911.29x = 7,505,086,219,164,925
  5. Step 5: Solve for x
    x = 7,505,086,219,164,925/79,178,911.29
  6. Step 6: Final answer
    x = 94,786,428.58

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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.