Home / 392,642,627.72-541,871,069.10-216,430,226.24

Finding the Fourth Proportional to 392,642,627.72, 541,871,069.10 and 216,430,226.24

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Solution

The fourth proportional to 392,642,627.72, 541,871,069.10 and 216,430,226.24 is: 298,687,075.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,642,627.72 : 541,871,069.10 = 216,430,226.24 : x
  2. Step 2: Convert to fraction form
    392,642,627.72/541,871,069.10 = 216,430,226.24/x
  3. Step 3: Cross multiply
    392,642,627.72x = 541,871,069.10 × 216,430,226.24
  4. Step 4: Simplify right side
    392,642,627.72x = 117,277,278,078,223,680
  5. Step 5: Solve for x
    x = 117,277,278,078,223,680/392,642,627.72
  6. Step 6: Final answer
    x = 298,687,075.21

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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.