Home / 420,073,157.72-579,733,008.48-231,937,722.02

Finding the Fourth Proportional to 420,073,157.72, 579,733,008.48 and 231,937,722.02

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Solution

The fourth proportional to 420,073,157.72, 579,733,008.48 and 231,937,722.02 is: 320,091,752.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,073,157.72 : 579,733,008.48 = 231,937,722.02 : x
  2. Step 2: Convert to fraction form
    420,073,157.72/579,733,008.48 = 231,937,722.02/x
  3. Step 3: Cross multiply
    420,073,157.72x = 579,733,008.48 × 231,937,722.02
  4. Step 4: Simplify right side
    420,073,157.72x = 134,461,953,366,652,560
  5. Step 5: Solve for x
    x = 134,461,953,366,652,560/420,073,157.72
  6. Step 6: Final answer
    x = 320,091,752.82

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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.