Home / 619,458,983.57-929,198,328.71-344,855,590.32

Finding the Fourth Proportional to 619,458,983.57, 929,198,328.71 and 344,855,590.32

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Solution

The fourth proportional to 619,458,983.57, 929,198,328.71 and 344,855,590.32 is: 517,288,870.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,458,983.57 : 929,198,328.71 = 344,855,590.32 : x
  2. Step 2: Convert to fraction form
    619,458,983.57/929,198,328.71 = 344,855,590.32/x
  3. Step 3: Cross multiply
    619,458,983.57x = 929,198,328.71 × 344,855,590.32
  4. Step 4: Simplify right side
    619,458,983.57x = 320,439,238,173,404,672
  5. Step 5: Solve for x
    x = 320,439,238,173,404,672/619,458,983.57
  6. Step 6: Final answer
    x = 517,288,870.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.