Home / 21,058,416,519.72-31,587,305,917.86-5,122,903,043.40

Finding the Fourth Proportional to 21,058,416,519.72, 31,587,305,917.86 and 5,122,903,043.40

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Solution

The fourth proportional to 21,058,416,519.72, 31,587,305,917.86 and 5,122,903,043.40 is: 7,684,276,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058,416,519.72 : 31,587,305,917.86 = 5,122,903,043.40 : x
  2. Step 2: Convert to fraction form
    21,058,416,519.72/31,587,305,917.86 = 5,122,903,043.40/x
  3. Step 3: Cross multiply
    21,058,416,519.72x = 31,587,305,917.86 × 5,122,903,043.40
  4. Step 4: Simplify right side
    21,058,416,519.72x = 161,818,705,619,411,828,736
  5. Step 5: Solve for x
    x = 161,818,705,619,411,828,736/21,058,416,519.72
  6. Step 6: Final answer
    x = 7,684,276,995.28

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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.