Home / 885,736,874.91-1,222,354,021.61-509,393,756.49

Finding the Fourth Proportional to 885,736,874.91, 1,222,354,021.61 and 509,393,756.49

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Solution

The fourth proportional to 885,736,874.91, 1,222,354,021.61 and 509,393,756.49 is: 702,984,740.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,736,874.91 : 1,222,354,021.61 = 509,393,756.49 : x
  2. Step 2: Convert to fraction form
    885,736,874.91/1,222,354,021.61 = 509,393,756.49/x
  3. Step 3: Cross multiply
    885,736,874.91x = 1,222,354,021.61 × 509,393,756.49
  4. Step 4: Simplify right side
    885,736,874.91x = 622,659,506,828,576,512
  5. Step 5: Solve for x
    x = 622,659,506,828,576,512/885,736,874.91
  6. Step 6: Final answer
    x = 702,984,740.13

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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.