Home / 486,276,940.80-729,415,411.20-145,874,764.80

Finding the Fourth Proportional to 486,276,940.80, 729,415,411.20 and 145,874,764.80

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Solution

The fourth proportional to 486,276,940.80, 729,415,411.20 and 145,874,764.80 is: 218,812,147.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,276,940.80 : 729,415,411.20 = 145,874,764.80 : x
  2. Step 2: Convert to fraction form
    486,276,940.80/729,415,411.20 = 145,874,764.80/x
  3. Step 3: Cross multiply
    486,276,940.80x = 729,415,411.20 × 145,874,764.80
  4. Step 4: Simplify right side
    486,276,940.80x = 106,403,301,550,295,296
  5. Step 5: Solve for x
    x = 106,403,301,550,295,296/486,276,940.80
  6. Step 6: Final answer
    x = 218,812,147.20

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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.