Home / 319,870,679.90-479,823,967.82-89,821,828.22

Finding the Fourth Proportional to 319,870,679.90, 479,823,967.82 and 89,821,828.22

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Solution

The fourth proportional to 319,870,679.90, 479,823,967.82 and 89,821,828.22 is: 134,737,782.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,870,679.90 : 479,823,967.82 = 89,821,828.22 : x
  2. Step 2: Convert to fraction form
    319,870,679.90/479,823,967.82 = 89,821,828.22/x
  3. Step 3: Cross multiply
    319,870,679.90x = 479,823,967.82 × 89,821,828.22
  4. Step 4: Simplify right side
    319,870,679.90x = 43,098,666,013,366,848
  5. Step 5: Solve for x
    x = 43,098,666,013,366,848/319,870,679.90
  6. Step 6: Final answer
    x = 134,737,782.24

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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.