Home / 221,332,654.80-332,113,879.89-90,271,082.45

Finding the Fourth Proportional to 221,332,654.80, 332,113,879.89 and 90,271,082.45

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Solution

The fourth proportional to 221,332,654.80, 332,113,879.89 and 90,271,082.45 is: 135,453,484.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,332,654.80 : 332,113,879.89 = 90,271,082.45 : x
  2. Step 2: Convert to fraction form
    221,332,654.80/332,113,879.89 = 90,271,082.45/x
  3. Step 3: Cross multiply
    221,332,654.80x = 332,113,879.89 × 90,271,082.45
  4. Step 4: Simplify right side
    221,332,654.80x = 29,980,279,432,679,012
  5. Step 5: Solve for x
    x = 29,980,279,432,679,012/221,332,654.80
  6. Step 6: Final answer
    x = 135,453,484.98

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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.