Home / 154,738,319.16-213,532,147.98-85,119,285.72

Finding the Fourth Proportional to 154,738,319.16, 213,532,147.98 and 85,119,285.72

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Solution

The fourth proportional to 154,738,319.16, 213,532,147.98 and 85,119,285.72 is: 117,460,910.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,738,319.16 : 213,532,147.98 = 85,119,285.72 : x
  2. Step 2: Convert to fraction form
    154,738,319.16/213,532,147.98 = 85,119,285.72/x
  3. Step 3: Cross multiply
    154,738,319.16x = 213,532,147.98 × 85,119,285.72
  4. Step 4: Simplify right side
    154,738,319.16x = 18,175,703,914,314,940
  5. Step 5: Solve for x
    x = 18,175,703,914,314,940/154,738,319.16
  6. Step 6: Final answer
    x = 117,460,910.87

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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.