Home / 79,370,971.20-118,995,901.20-36,209,991.60

Finding the Fourth Proportional to 79,370,971.20, 118,995,901.20 and 36,209,991.60

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Solution

The fourth proportional to 79,370,971.20, 118,995,901.20 and 36,209,991.60 is: 54,287,361.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,370,971.20 : 118,995,901.20 = 36,209,991.60 : x
  2. Step 2: Convert to fraction form
    79,370,971.20/118,995,901.20 = 36,209,991.60/x
  3. Step 3: Cross multiply
    79,370,971.20x = 118,995,901.20 × 36,209,991.60
  4. Step 4: Simplify right side
    79,370,971.20x = 4,308,840,582,886,430
  5. Step 5: Solve for x
    x = 4,308,840,582,886,430/79,370,971.20
  6. Step 6: Final answer
    x = 54,287,361.21

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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.