Home / 100,735,738.40-151,103,607.60-78,816,749.60

Finding the Fourth Proportional to 100,735,738.40, 151,103,607.60 and 78,816,749.60

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Solution

The fourth proportional to 100,735,738.40, 151,103,607.60 and 78,816,749.60 is: 118,225,124.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,735,738.40 : 151,103,607.60 = 78,816,749.60 : x
  2. Step 2: Convert to fraction form
    100,735,738.40/151,103,607.60 = 78,816,749.60/x
  3. Step 3: Cross multiply
    100,735,738.40x = 151,103,607.60 × 78,816,749.60
  4. Step 4: Simplify right side
    100,735,738.40x = 11,909,495,203,865,856
  5. Step 5: Solve for x
    x = 11,909,495,203,865,856/100,735,738.40
  6. Step 6: Final answer
    x = 118,225,124.40

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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.