Home / 39,379,195,703.90-54,343,292,725.06-21,557,853,209.90

Finding the Fourth Proportional to 39,379,195,703.90, 54,343,292,725.06 and 21,557,853,209.90

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Solution

The fourth proportional to 39,379,195,703.90, 54,343,292,725.06 and 21,557,853,209.90 is: 29,749,838,882.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,379,195,703.90 : 54,343,292,725.06 = 21,557,853,209.90 : x
  2. Step 2: Convert to fraction form
    39,379,195,703.90/54,343,292,725.06 = 21,557,853,209.90/x
  3. Step 3: Cross multiply
    39,379,195,703.90x = 54,343,292,725.06 × 21,557,853,209.90
  4. Step 4: Simplify right side
    39,379,195,703.90x = 1,171,524,727,509,470,019,584
  5. Step 5: Solve for x
    x = 1,171,524,727,509,470,019,584/39,379,195,703.90
  6. Step 6: Final answer
    x = 29,749,838,882.40

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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.