Home / 38,713,641.75-53,426,235.34-21,071,692.23

Finding the Fourth Proportional to 38,713,641.75, 53,426,235.34 and 21,071,692.23

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Solution

The fourth proportional to 38,713,641.75, 53,426,235.34 and 21,071,692.23 is: 29,079,702.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,713,641.75 : 53,426,235.34 = 21,071,692.23 : x
  2. Step 2: Convert to fraction form
    38,713,641.75/53,426,235.34 = 21,071,692.23/x
  3. Step 3: Cross multiply
    38,713,641.75x = 53,426,235.34 × 21,071,692.23
  4. Step 4: Simplify right side
    38,713,641.75x = 1,125,781,188,092,029.50
  5. Step 5: Solve for x
    x = 1,125,781,188,092,029.50/38,713,641.75
  6. Step 6: Final answer
    x = 29,079,702.59

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Double scale
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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.