Home / 80,851,586.40-121,277,379.60-68,097,002.40

Finding the Fourth Proportional to 80,851,586.40, 121,277,379.60 and 68,097,002.40

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Solution

The fourth proportional to 80,851,586.40, 121,277,379.60 and 68,097,002.40 is: 102,145,503.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,851,586.40 : 121,277,379.60 = 68,097,002.40 : x
  2. Step 2: Convert to fraction form
    80,851,586.40/121,277,379.60 = 68,097,002.40/x
  3. Step 3: Cross multiply
    80,851,586.40x = 121,277,379.60 × 68,097,002.40
  4. Step 4: Simplify right side
    80,851,586.40x = 8,258,626,009,686,911
  5. Step 5: Solve for x
    x = 8,258,626,009,686,911/80,851,586.40
  6. Step 6: Final answer
    x = 102,145,503.60

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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.