Home / 421,539,962.06-581,786,026.10-242,889,647.73

Finding the Fourth Proportional to 421,539,962.06, 581,786,026.10 and 242,889,647.73

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Solution

The fourth proportional to 421,539,962.06, 581,786,026.10 and 242,889,647.73 is: 335,222,791.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,539,962.06 : 581,786,026.10 = 242,889,647.73 : x
  2. Step 2: Convert to fraction form
    421,539,962.06/581,786,026.10 = 242,889,647.73/x
  3. Step 3: Cross multiply
    421,539,962.06x = 581,786,026.10 × 242,889,647.73
  4. Step 4: Simplify right side
    421,539,962.06x = 141,309,802,931,180,272
  5. Step 5: Solve for x
    x = 141,309,802,931,180,272/421,539,962.06
  6. Step 6: Final answer
    x = 335,222,791.78

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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.