Home / 1,321,739,872.15-1,824,134,809.63-757,299,623.49

Finding the Fourth Proportional to 1,321,739,872.15, 1,824,134,809.63 and 757,299,623.49

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Solution

The fourth proportional to 1,321,739,872.15, 1,824,134,809.63 and 757,299,623.49 is: 1,045,150,134.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,739,872.15 : 1,824,134,809.63 = 757,299,623.49 : x
  2. Step 2: Convert to fraction form
    1,321,739,872.15/1,824,134,809.63 = 757,299,623.49/x
  3. Step 3: Cross multiply
    1,321,739,872.15x = 1,824,134,809.63 × 757,299,623.49
  4. Step 4: Simplify right side
    1,321,739,872.15x = 1,381,416,604,527,801,856
  5. Step 5: Solve for x
    x = 1,381,416,604,527,801,856/1,321,739,872.15
  6. Step 6: Final answer
    x = 1,045,150,134.03

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Double scale
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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.