Home / 667,040,543.33-920,516,037.05-369,701,982.20

Finding the Fourth Proportional to 667,040,543.33, 920,516,037.05 and 369,701,982.20

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Solution

The fourth proportional to 667,040,543.33, 920,516,037.05 and 369,701,982.20 is: 510,188,783.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,040,543.33 : 920,516,037.05 = 369,701,982.20 : x
  2. Step 2: Convert to fraction form
    667,040,543.33/920,516,037.05 = 369,701,982.20/x
  3. Step 3: Cross multiply
    667,040,543.33x = 920,516,037.05 × 369,701,982.20
  4. Step 4: Simplify right side
    667,040,543.33x = 340,316,603,547,499,200
  5. Step 5: Solve for x
    x = 340,316,603,547,499,200/667,040,543.33
  6. Step 6: Final answer
    x = 510,188,783.80

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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.