Home / 478,220,572.10-659,923,999.26-266,516,137.64

Finding the Fourth Proportional to 478,220,572.10, 659,923,999.26 and 266,516,137.64

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Solution

The fourth proportional to 478,220,572.10, 659,923,999.26 and 266,516,137.64 is: 367,780,906.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,220,572.10 : 659,923,999.26 = 266,516,137.64 : x
  2. Step 2: Convert to fraction form
    478,220,572.10/659,923,999.26 = 266,516,137.64/x
  3. Step 3: Cross multiply
    478,220,572.10x = 659,923,999.26 × 266,516,137.64
  4. Step 4: Simplify right side
    478,220,572.10x = 175,880,395,418,717,408
  5. Step 5: Solve for x
    x = 175,880,395,418,717,408/478,220,572.10
  6. Step 6: Final answer
    x = 367,780,906.30

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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.