Home / 519,444,191-716,855,516.70-287,657,183

Finding the Fourth Proportional to 519,444,191, 716,855,516.70 and 287,657,183

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Solution

The fourth proportional to 519,444,191, 716,855,516.70 and 287,657,183 is: 396,979,390.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,444,191 : 716,855,516.70 = 287,657,183 : x
  2. Step 2: Convert to fraction form
    519,444,191/716,855,516.70 = 287,657,183/x
  3. Step 3: Cross multiply
    519,444,191x = 716,855,516.70 × 287,657,183
  4. Step 4: Simplify right side
    519,444,191x = 206,208,638,551,931,456
  5. Step 5: Solve for x
    x = 206,208,638,551,931,456/519,444,191
  6. Step 6: Final answer
    x = 396,979,390.90

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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.