Home / 1,378,314,472.66-1,902,234,778.20-783,688,053.31

Finding the Fourth Proportional to 1,378,314,472.66, 1,902,234,778.20 and 783,688,053.31

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Solution

The fourth proportional to 1,378,314,472.66, 1,902,234,778.20 and 783,688,053.31 is: 1,081,580,945.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,314,472.66 : 1,902,234,778.20 = 783,688,053.31 : x
  2. Step 2: Convert to fraction form
    1,378,314,472.66/1,902,234,778.20 = 783,688,053.31/x
  3. Step 3: Cross multiply
    1,378,314,472.66x = 1,902,234,778.20 × 783,688,053.31
  4. Step 4: Simplify right side
    1,378,314,472.66x = 1,490,758,670,261,382,144
  5. Step 5: Solve for x
    x = 1,490,758,670,261,382,144/1,378,314,472.66
  6. Step 6: Final answer
    x = 1,081,580,945.30

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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.