Home / 811,044,078.63-1,119,262,836.20-458,672,762.67

Finding the Fourth Proportional to 811,044,078.63, 1,119,262,836.20 and 458,672,762.67

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Solution

The fourth proportional to 811,044,078.63, 1,119,262,836.20 and 458,672,762.67 is: 632,980,858.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,044,078.63 : 1,119,262,836.20 = 458,672,762.67 : x
  2. Step 2: Convert to fraction form
    811,044,078.63/1,119,262,836.20 = 458,672,762.67/x
  3. Step 3: Cross multiply
    811,044,078.63x = 1,119,262,836.20 × 458,672,762.67
  4. Step 4: Simplify right side
    811,044,078.63x = 513,375,377,231,420,288
  5. Step 5: Solve for x
    x = 513,375,377,231,420,288/811,044,078.63
  6. Step 6: Final answer
    x = 632,980,858.57

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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.