Home / 421,540,000.62-581,786,079.48-242,889,686.34

Finding the Fourth Proportional to 421,540,000.62, 581,786,079.48 and 242,889,686.34

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Solution

The fourth proportional to 421,540,000.62, 581,786,079.48 and 242,889,686.34 is: 335,222,845.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,540,000.62 : 581,786,079.48 = 242,889,686.34 : x
  2. Step 2: Convert to fraction form
    421,540,000.62/581,786,079.48 = 242,889,686.34/x
  3. Step 3: Cross multiply
    421,540,000.62x = 581,786,079.48 × 242,889,686.34
  4. Step 4: Simplify right side
    421,540,000.62x = 141,309,838,361,875,520
  5. Step 5: Solve for x
    x = 141,309,838,361,875,520/421,540,000.62
  6. Step 6: Final answer
    x = 335,222,845.17

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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.