Home / 78,826,289.40-118,327,907.70-60,954,622.20

Finding the Fourth Proportional to 78,826,289.40, 118,327,907.70 and 60,954,622.20

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Solution

The fourth proportional to 78,826,289.40, 118,327,907.70 and 60,954,622.20 is: 91,500,347.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,826,289.40 : 118,327,907.70 = 60,954,622.20 : x
  2. Step 2: Convert to fraction form
    78,826,289.40/118,327,907.70 = 60,954,622.20/x
  3. Step 3: Cross multiply
    78,826,289.40x = 118,327,907.70 × 60,954,622.20
  4. Step 4: Simplify right side
    78,826,289.40x = 7,212,632,909,569,971
  5. Step 5: Solve for x
    x = 7,212,632,909,569,971/78,826,289.40
  6. Step 6: Final answer
    x = 91,500,347.97

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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.