Home / 851,011,863.66-1,274,730,137.81-539,959,369.13

Finding the Fourth Proportional to 851,011,863.66, 1,274,730,137.81 and 539,959,369.13

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Solution

The fourth proportional to 851,011,863.66, 1,274,730,137.81 and 539,959,369.13 is: 808,804,800.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,011,863.66 : 1,274,730,137.81 = 539,959,369.13 : x
  2. Step 2: Convert to fraction form
    851,011,863.66/1,274,730,137.81 = 539,959,369.13/x
  3. Step 3: Cross multiply
    851,011,863.66x = 1,274,730,137.81 × 539,959,369.13
  4. Step 4: Simplify right side
    851,011,863.66x = 688,302,481,022,885,504
  5. Step 5: Solve for x
    x = 688,302,481,022,885,504/851,011,863.66
  6. Step 6: Final answer
    x = 808,804,800.98

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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.