Home / 218,017,311.77-326,894,247.28-86,879,761.67

Finding the Fourth Proportional to 218,017,311.77, 326,894,247.28 and 86,879,761.67

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Solution

The fourth proportional to 218,017,311.77, 326,894,247.28 and 86,879,761.67 is: 130,267,152.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,017,311.77 : 326,894,247.28 = 86,879,761.67 : x
  2. Step 2: Convert to fraction form
    218,017,311.77/326,894,247.28 = 86,879,761.67/x
  3. Step 3: Cross multiply
    218,017,311.77x = 326,894,247.28 × 86,879,761.67
  4. Step 4: Simplify right side
    218,017,311.77x = 28,400,494,294,980,444
  5. Step 5: Solve for x
    x = 28,400,494,294,980,444/218,017,311.77
  6. Step 6: Final answer
    x = 130,267,152.02

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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.