Home / 20,705,630.40-31,058,445.60-19,445,918.40

Finding the Fourth Proportional to 20,705,630.40, 31,058,445.60 and 19,445,918.40

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Solution

The fourth proportional to 20,705,630.40, 31,058,445.60 and 19,445,918.40 is: 29,168,877.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,630.40 : 31,058,445.60 = 19,445,918.40 : x
  2. Step 2: Convert to fraction form
    20,705,630.40/31,058,445.60 = 19,445,918.40/x
  3. Step 3: Cross multiply
    20,705,630.40x = 31,058,445.60 × 19,445,918.40
  4. Step 4: Simplify right side
    20,705,630.40x = 603,959,998,768,439
  5. Step 5: Solve for x
    x = 603,959,998,768,439/20,705,630.40
  6. Step 6: Final answer
    x = 29,168,877.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.