Home / 1,238,836,471.88-1,709,639,442.16-674,294,086.91

Finding the Fourth Proportional to 1,238,836,471.88, 1,709,639,442.16 and 674,294,086.91

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Solution

The fourth proportional to 1,238,836,471.88, 1,709,639,442.16 and 674,294,086.91 is: 930,550,393.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,836,471.88 : 1,709,639,442.16 = 674,294,086.91 : x
  2. Step 2: Convert to fraction form
    1,238,836,471.88/1,709,639,442.16 = 674,294,086.91/x
  3. Step 3: Cross multiply
    1,238,836,471.88x = 1,709,639,442.16 × 674,294,086.91
  4. Step 4: Simplify right side
    1,238,836,471.88x = 1,152,799,766,599,187,328
  5. Step 5: Solve for x
    x = 1,152,799,766,599,187,328/1,238,836,471.88
  6. Step 6: Final answer
    x = 930,550,393.67

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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.