Home / 5,218,844,798.47-7,202,006,887.40-2,872,001,342.47

Finding the Fourth Proportional to 5,218,844,798.47, 7,202,006,887.40 and 2,872,001,342.47

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Solution

The fourth proportional to 5,218,844,798.47, 7,202,006,887.40 and 2,872,001,342.47 is: 3,963,362,438.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218,844,798.47 : 7,202,006,887.40 = 2,872,001,342.47 : x
  2. Step 2: Convert to fraction form
    5,218,844,798.47/7,202,006,887.40 = 2,872,001,342.47/x
  3. Step 3: Cross multiply
    5,218,844,798.47x = 7,202,006,887.40 × 2,872,001,342.47
  4. Step 4: Simplify right side
    5,218,844,798.47x = 20,684,173,449,090,981,888
  5. Step 5: Solve for x
    x = 20,684,173,449,090,981,888/5,218,844,798.47
  6. Step 6: Final answer
    x = 3,963,362,438.97

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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.