Home / 118,098,907.20-177,148,360.80-72,686,289.60

Finding the Fourth Proportional to 118,098,907.20, 177,148,360.80 and 72,686,289.60

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Solution

The fourth proportional to 118,098,907.20, 177,148,360.80 and 72,686,289.60 is: 109,029,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,098,907.20 : 177,148,360.80 = 72,686,289.60 : x
  2. Step 2: Convert to fraction form
    118,098,907.20/177,148,360.80 = 72,686,289.60/x
  3. Step 3: Cross multiply
    118,098,907.20x = 177,148,360.80 × 72,686,289.60
  4. Step 4: Simplify right side
    118,098,907.20x = 12,876,257,055,274,088
  5. Step 5: Solve for x
    x = 12,876,257,055,274,088/118,098,907.20
  6. Step 6: Final answer
    x = 109,029,434.40

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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.