Home / 766,457,852.24-1,057,908,633.72-499,199,668.03

Finding the Fourth Proportional to 766,457,852.24, 1,057,908,633.72 and 499,199,668.03

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Solution

The fourth proportional to 766,457,852.24, 1,057,908,633.72 and 499,199,668.03 is: 689,023,717.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,457,852.24 : 1,057,908,633.72 = 499,199,668.03 : x
  2. Step 2: Convert to fraction form
    766,457,852.24/1,057,908,633.72 = 499,199,668.03/x
  3. Step 3: Cross multiply
    766,457,852.24x = 1,057,908,633.72 × 499,199,668.03
  4. Step 4: Simplify right side
    766,457,852.24x = 528,107,638,758,520,320
  5. Step 5: Solve for x
    x = 528,107,638,758,520,320/766,457,852.24
  6. Step 6: Final answer
    x = 689,023,717.63

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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.