Home / 557,919,279.12-769,935,687.66-307,052,555.16

Finding the Fourth Proportional to 557,919,279.12, 769,935,687.66 and 307,052,555.16

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Solution

The fourth proportional to 557,919,279.12, 769,935,687.66 and 307,052,555.16 is: 423,736,423.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,919,279.12 : 769,935,687.66 = 307,052,555.16 : x
  2. Step 2: Convert to fraction form
    557,919,279.12/769,935,687.66 = 307,052,555.16/x
  3. Step 3: Cross multiply
    557,919,279.12x = 769,935,687.66 × 307,052,555.16
  4. Step 4: Simplify right side
    557,919,279.12x = 236,410,720,204,874,688
  5. Step 5: Solve for x
    x = 236,410,720,204,874,688/557,919,279.12
  6. Step 6: Final answer
    x = 423,736,423.98

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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.