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Finding the Fourth Proportional to 556,350,174.66, 767,764,751.84 and 305,470,816.25

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Solution

The fourth proportional to 556,350,174.66, 767,764,751.84 and 305,470,816.25 is: 421,550,555.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,350,174.66 : 767,764,751.84 = 305,470,816.25 : x
  2. Step 2: Convert to fraction form
    556,350,174.66/767,764,751.84 = 305,470,816.25/x
  3. Step 3: Cross multiply
    556,350,174.66x = 767,764,751.84 × 305,470,816.25
  4. Step 4: Simplify right side
    556,350,174.66x = 234,529,725,432,543,488
  5. Step 5: Solve for x
    x = 234,529,725,432,543,488/556,350,174.66
  6. Step 6: Final answer
    x = 421,550,555.95

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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.