Home / 115,880,336.80-173,820,505.20-72,779,815.60

Finding the Fourth Proportional to 115,880,336.80, 173,820,505.20 and 72,779,815.60

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Solution

The fourth proportional to 115,880,336.80, 173,820,505.20 and 72,779,815.60 is: 109,169,723.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,880,336.80 : 173,820,505.20 = 72,779,815.60 : x
  2. Step 2: Convert to fraction form
    115,880,336.80/173,820,505.20 = 72,779,815.60/x
  3. Step 3: Cross multiply
    115,880,336.80x = 173,820,505.20 × 72,779,815.60
  4. Step 4: Simplify right side
    115,880,336.80x = 12,650,624,315,954,840
  5. Step 5: Solve for x
    x = 12,650,624,315,954,840/115,880,336.80
  6. Step 6: Final answer
    x = 109,169,723.40

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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.