Home / 345,098,509.80-517,647,764.70-163,699,981.80

Finding the Fourth Proportional to 345,098,509.80, 517,647,764.70 and 163,699,981.80

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Solution

The fourth proportional to 345,098,509.80, 517,647,764.70 and 163,699,981.80 is: 245,549,972.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,098,509.80 : 517,647,764.70 = 163,699,981.80 : x
  2. Step 2: Convert to fraction form
    345,098,509.80/517,647,764.70 = 163,699,981.80/x
  3. Step 3: Cross multiply
    345,098,509.80x = 517,647,764.70 × 163,699,981.80
  4. Step 4: Simplify right side
    345,098,509.80x = 84,738,929,660,200,688
  5. Step 5: Solve for x
    x = 84,738,929,660,200,688/345,098,509.80
  6. Step 6: Final answer
    x = 245,549,972.70

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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.