Home / 783,609,247.76-1,081,348,289.34-426,378,499.34

Finding the Fourth Proportional to 783,609,247.76, 1,081,348,289.34 and 426,378,499.34

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Solution

The fourth proportional to 783,609,247.76, 1,081,348,289.34 and 426,378,499.34 is: 588,384,660.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,609,247.76 : 1,081,348,289.34 = 426,378,499.34 : x
  2. Step 2: Convert to fraction form
    783,609,247.76/1,081,348,289.34 = 426,378,499.34/x
  3. Step 3: Cross multiply
    783,609,247.76x = 1,081,348,289.34 × 426,378,499.34
  4. Step 4: Simplify right side
    783,609,247.76x = 461,063,660,867,258,496
  5. Step 5: Solve for x
    x = 461,063,660,867,258,496/783,609,247.76
  6. Step 6: Final answer
    x = 588,384,660.07

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1.5x scale

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.