Home / 77,328,772.30-115,990,534.05-19,821,607.30

Finding the Fourth Proportional to 77,328,772.30, 115,990,534.05 and 19,821,607.30

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Solution

The fourth proportional to 77,328,772.30, 115,990,534.05 and 19,821,607.30 is: 29,731,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,328,772.30 : 115,990,534.05 = 19,821,607.30 : x
  2. Step 2: Convert to fraction form
    77,328,772.30/115,990,534.05 = 19,821,607.30/x
  3. Step 3: Cross multiply
    77,328,772.30x = 115,990,534.05 × 19,821,607.30
  4. Step 4: Simplify right side
    77,328,772.30x = 2,299,118,816,456,378.50
  5. Step 5: Solve for x
    x = 2,299,118,816,456,378.50/77,328,772.30
  6. Step 6: Final answer
    x = 29,731,738.24

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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.