Home / 1,385,434,862.82-1,911,175,255.17-856,629,810.18

Finding the Fourth Proportional to 1,385,434,862.82, 1,911,175,255.17 and 856,629,810.18

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Solution

The fourth proportional to 1,385,434,862.82, 1,911,175,255.17 and 856,629,810.18 is: 1,181,700,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,434,862.82 : 1,911,175,255.17 = 856,629,810.18 : x
  2. Step 2: Convert to fraction form
    1,385,434,862.82/1,911,175,255.17 = 856,629,810.18/x
  3. Step 3: Cross multiply
    1,385,434,862.82x = 1,911,175,255.17 × 856,629,810.18
  4. Step 4: Simplify right side
    1,385,434,862.82x = 1,637,169,696,056,990,208
  5. Step 5: Solve for x
    x = 1,637,169,696,056,990,208/1,385,434,862.82
  6. Step 6: Final answer
    x = 1,181,700,951.80

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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.