Home / 386,291,658.18-533,202,518.85-307,047,332.25

Finding the Fourth Proportional to 386,291,658.18, 533,202,518.85 and 307,047,332.25

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Solution

The fourth proportional to 386,291,658.18, 533,202,518.85 and 307,047,332.25 is: 423,820,725.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,291,658.18 : 533,202,518.85 = 307,047,332.25 : x
  2. Step 2: Convert to fraction form
    386,291,658.18/533,202,518.85 = 307,047,332.25/x
  3. Step 3: Cross multiply
    386,291,658.18x = 533,202,518.85 × 307,047,332.25
  4. Step 4: Simplify right side
    386,291,658.18x = 163,718,410,961,872,832
  5. Step 5: Solve for x
    x = 163,718,410,961,872,832/386,291,658.18
  6. Step 6: Final answer
    x = 423,820,725.86

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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.