Home / 154,756,324.46-213,563,720.54-85,140,210.67

Finding the Fourth Proportional to 154,756,324.46, 213,563,720.54 and 85,140,210.67

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Solution

The fourth proportional to 154,756,324.46, 213,563,720.54 and 85,140,210.67 is: 117,493,486.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,756,324.46 : 213,563,720.54 = 85,140,210.67 : x
  2. Step 2: Convert to fraction form
    154,756,324.46/213,563,720.54 = 85,140,210.67/x
  3. Step 3: Cross multiply
    154,756,324.46x = 213,563,720.54 × 85,140,210.67
  4. Step 4: Simplify right side
    154,756,324.46x = 18,182,860,157,923,548
  5. Step 5: Solve for x
    x = 18,182,860,157,923,548/154,756,324.46
  6. Step 6: Final answer
    x = 117,493,486.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.