Home / 808,758,191.40-1,213,137,287.10-400,611,503.40

Finding the Fourth Proportional to 808,758,191.40, 1,213,137,287.10 and 400,611,503.40

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Solution

The fourth proportional to 808,758,191.40, 1,213,137,287.10 and 400,611,503.40 is: 600,917,255.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,758,191.40 : 1,213,137,287.10 = 400,611,503.40 : x
  2. Step 2: Convert to fraction form
    808,758,191.40/1,213,137,287.10 = 400,611,503.40/x
  3. Step 3: Cross multiply
    808,758,191.40x = 1,213,137,287.10 × 400,611,503.40
  4. Step 4: Simplify right side
    808,758,191.40x = 485,996,752,415,728,384
  5. Step 5: Solve for x
    x = 485,996,752,415,728,384/808,758,191.40
  6. Step 6: Final answer
    x = 600,917,255.10

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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.