Home / 478,099,820.67-659,771,045.91-266,415,573.36

Finding the Fourth Proportional to 478,099,820.67, 659,771,045.91 and 266,415,573.36

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Solution

The fourth proportional to 478,099,820.67, 659,771,045.91 and 266,415,573.36 is: 367,649,754.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,099,820.67 : 659,771,045.91 = 266,415,573.36 : x
  2. Step 2: Convert to fraction form
    478,099,820.67/659,771,045.91 = 266,415,573.36/x
  3. Step 3: Cross multiply
    478,099,820.67x = 659,771,045.91 × 266,415,573.36
  4. Step 4: Simplify right side
    478,099,820.67x = 175,773,281,482,439,520
  5. Step 5: Solve for x
    x = 175,773,281,482,439,520/478,099,820.67
  6. Step 6: Final answer
    x = 367,649,754.05

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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.