Home / 538,841,713.20-808,262,569.80-345,131,468.70

Finding the Fourth Proportional to 538,841,713.20, 808,262,569.80 and 345,131,468.70

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Solution

The fourth proportional to 538,841,713.20, 808,262,569.80 and 345,131,468.70 is: 517,697,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,841,713.20 : 808,262,569.80 = 345,131,468.70 : x
  2. Step 2: Convert to fraction form
    538,841,713.20/808,262,569.80 = 345,131,468.70/x
  3. Step 3: Cross multiply
    538,841,713.20x = 808,262,569.80 × 345,131,468.70
  4. Step 4: Simplify right side
    538,841,713.20x = 278,956,847,810,310,240
  5. Step 5: Solve for x
    x = 278,956,847,810,310,240/538,841,713.20
  6. Step 6: Final answer
    x = 517,697,203.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.