Home / 838,326,436.16-1,251,595,194.40-640,554,801.44

Finding the Fourth Proportional to 838,326,436.16, 1,251,595,194.40 and 640,554,801.44

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Solution

The fourth proportional to 838,326,436.16, 1,251,595,194.40 and 640,554,801.44 is: 956,328,318.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,326,436.16 : 1,251,595,194.40 = 640,554,801.44 : x
  2. Step 2: Convert to fraction form
    838,326,436.16/1,251,595,194.40 = 640,554,801.44/x
  3. Step 3: Cross multiply
    838,326,436.16x = 1,251,595,194.40 × 640,554,801.44
  4. Step 4: Simplify right side
    838,326,436.16x = 801,715,311,232,150,272
  5. Step 5: Solve for x
    x = 801,715,311,232,150,272/838,326,436.16
  6. Step 6: Final answer
    x = 956,328,318.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.