Home / 5,218,831,750.38-7,201,988,865.63-2,871,988,294.38

Finding the Fourth Proportional to 5,218,831,750.38, 7,201,988,865.63 and 2,871,988,294.38

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Solution

The fourth proportional to 5,218,831,750.38, 7,201,988,865.63 and 2,871,988,294.38 is: 3,963,344,424.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218,831,750.38 : 7,201,988,865.63 = 2,871,988,294.38 : x
  2. Step 2: Convert to fraction form
    5,218,831,750.38/7,201,988,865.63 = 2,871,988,294.38/x
  3. Step 3: Cross multiply
    5,218,831,750.38x = 7,201,988,865.63 × 2,871,988,294.38
  4. Step 4: Simplify right side
    5,218,831,750.38x = 20,684,027,718,344,454,144
  5. Step 5: Solve for x
    x = 20,684,027,718,344,454,144/5,218,831,750.38
  6. Step 6: Final answer
    x = 3,963,344,424.13

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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.