Home / 519,444,190-716,855,515.32-287,657,182

Finding the Fourth Proportional to 519,444,190, 716,855,515.32 and 287,657,182

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Solution

The fourth proportional to 519,444,190, 716,855,515.32 and 287,657,182 is: 396,979,389.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,444,190 : 716,855,515.32 = 287,657,182 : x
  2. Step 2: Convert to fraction form
    519,444,190/716,855,515.32 = 287,657,182/x
  3. Step 3: Cross multiply
    519,444,190x = 716,855,515.32 × 287,657,182
  4. Step 4: Simplify right side
    519,444,190x = 206,208,637,438,109,056
  5. Step 5: Solve for x
    x = 206,208,637,438,109,056/519,444,190
  6. Step 6: Final answer
    x = 396,979,389.52

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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.