Home / 634,543,665.28-875,673,427.44-396,527,058.40

Finding the Fourth Proportional to 634,543,665.28, 875,673,427.44 and 396,527,058.40

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Solution

The fourth proportional to 634,543,665.28, 875,673,427.44 and 396,527,058.40 is: 547,209,321.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,543,665.28 : 875,673,427.44 = 396,527,058.40 : x
  2. Step 2: Convert to fraction form
    634,543,665.28/875,673,427.44 = 396,527,058.40/x
  3. Step 3: Cross multiply
    634,543,665.28x = 875,673,427.44 × 396,527,058.40
  4. Step 4: Simplify right side
    634,543,665.28x = 347,228,208,299,846,336
  5. Step 5: Solve for x
    x = 347,228,208,299,846,336/634,543,665.28
  6. Step 6: Final answer
    x = 547,209,321.12

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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.