Home / 1,385,320,737.22-1,911,932,820.71-849,377,622.76

Finding the Fourth Proportional to 1,385,320,737.22, 1,911,932,820.71 and 849,377,622.76

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Solution

The fourth proportional to 1,385,320,737.22, 1,911,932,820.71 and 849,377,622.76 is: 1,172,257,738.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,320,737.22 : 1,911,932,820.71 = 849,377,622.76 : x
  2. Step 2: Convert to fraction form
    1,385,320,737.22/1,911,932,820.71 = 849,377,622.76/x
  3. Step 3: Cross multiply
    1,385,320,737.22x = 1,911,932,820.71 × 849,377,622.76
  4. Step 4: Simplify right side
    1,385,320,737.22x = 1,623,952,954,131,481,088
  5. Step 5: Solve for x
    x = 1,623,952,954,131,481,088/1,385,320,737.22
  6. Step 6: Final answer
    x = 1,172,257,738.23

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Double scale
Find fourth proportional to 1,385,320,738.22, 1,911,932,822.09 and 849,377,623.76
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1.5x scale

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.