Home / 7,180,999.76-9,909,768.36-3,917,814.78

Finding the Fourth Proportional to 7,180,999.76, 9,909,768.36 and 3,917,814.78

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Solution

The fourth proportional to 7,180,999.76, 9,909,768.36 and 3,917,814.78 is: 5,406,578.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,180,999.76 : 9,909,768.36 = 3,917,814.78 : x
  2. Step 2: Convert to fraction form
    7,180,999.76/9,909,768.36 = 3,917,814.78/x
  3. Step 3: Cross multiply
    7,180,999.76x = 9,909,768.36 × 3,917,814.78
  4. Step 4: Simplify right side
    7,180,999.76x = 38,824,636,947,184.36
  5. Step 5: Solve for x
    x = 38,824,636,947,184.36/7,180,999.76
  6. Step 6: Final answer
    x = 5,406,578.23

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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.