Home / 7,129,263.82-9,838,386.71-3,866,077.68

Finding the Fourth Proportional to 7,129,263.82, 9,838,386.71 and 3,866,077.68

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Solution

The fourth proportional to 7,129,263.82, 9,838,386.71 and 3,866,077.68 is: 5,335,188.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,263.82 : 9,838,386.71 = 3,866,077.68 : x
  2. Step 2: Convert to fraction form
    7,129,263.82/9,838,386.71 = 3,866,077.68/x
  3. Step 3: Cross multiply
    7,129,263.82x = 9,838,386.71 × 3,866,077.68
  4. Step 4: Simplify right side
    7,129,263.82x = 38,035,967,274,430.23
  5. Step 5: Solve for x
    x = 38,035,967,274,430.23/7,129,263.82
  6. Step 6: Final answer
    x = 5,335,188.63

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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.