Home / 387,251,005.50-534,406,398.57-213,410,749.50

Finding the Fourth Proportional to 387,251,005.50, 534,406,398.57 and 213,410,749.50

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Solution

The fourth proportional to 387,251,005.50, 534,406,398.57 and 213,410,749.50 is: 294,506,840.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,251,005.50 : 534,406,398.57 = 213,410,749.50 : x
  2. Step 2: Convert to fraction form
    387,251,005.50/534,406,398.57 = 213,410,749.50/x
  3. Step 3: Cross multiply
    387,251,005.50x = 534,406,398.57 × 213,410,749.50
  4. Step 4: Simplify right side
    387,251,005.50x = 114,048,070,056,419,424
  5. Step 5: Solve for x
    x = 114,048,070,056,419,424/387,251,005.50
  6. Step 6: Final answer
    x = 294,506,840.36

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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.