Home / 851,834,138.40-1,276,869,409.20-462,835,072.80

Finding the Fourth Proportional to 851,834,138.40, 1,276,869,409.20 and 462,835,072.80

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Solution

The fourth proportional to 851,834,138.40, 1,276,869,409.20 and 462,835,072.80 is: 693,773,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,834,138.40 : 1,276,869,409.20 = 462,835,072.80 : x
  2. Step 2: Convert to fraction form
    851,834,138.40/1,276,869,409.20 = 462,835,072.80/x
  3. Step 3: Cross multiply
    851,834,138.40x = 1,276,869,409.20 × 462,835,072.80
  4. Step 4: Simplify right side
    851,834,138.40x = 590,979,945,963,175,040
  5. Step 5: Solve for x
    x = 590,979,945,963,175,040/851,834,138.40
  6. Step 6: Final answer
    x = 693,773,493.36

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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.