Home / 1,378,314,475.62-1,902,234,782.28-783,688,056.25

Finding the Fourth Proportional to 1,378,314,475.62, 1,902,234,782.28 and 783,688,056.25

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Solution

The fourth proportional to 1,378,314,475.62, 1,902,234,782.28 and 783,688,056.25 is: 1,081,580,949.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,314,475.62 : 1,902,234,782.28 = 783,688,056.25 : x
  2. Step 2: Convert to fraction form
    1,378,314,475.62/1,902,234,782.28 = 783,688,056.25/x
  3. Step 3: Cross multiply
    1,378,314,475.62x = 1,902,234,782.28 × 783,688,056.25
  4. Step 4: Simplify right side
    1,378,314,475.62x = 1,490,758,679,042,725,632
  5. Step 5: Solve for x
    x = 1,490,758,679,042,725,632/1,378,314,475.62
  6. Step 6: Final answer
    x = 1,081,580,949.35

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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.