Home / 88,587,134.40-132,880,701.60-78,509,438.40

Finding the Fourth Proportional to 88,587,134.40, 132,880,701.60 and 78,509,438.40

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Solution

The fourth proportional to 88,587,134.40, 132,880,701.60 and 78,509,438.40 is: 117,764,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,587,134.40 : 132,880,701.60 = 78,509,438.40 : x
  2. Step 2: Convert to fraction form
    88,587,134.40/132,880,701.60 = 78,509,438.40/x
  3. Step 3: Cross multiply
    88,587,134.40x = 132,880,701.60 × 78,509,438.40
  4. Step 4: Simplify right side
    88,587,134.40x = 10,432,389,256,813,982
  5. Step 5: Solve for x
    x = 10,432,389,256,813,982/88,587,134.40
  6. Step 6: Final answer
    x = 117,764,157.60

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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.