Home / 747,665,128.09-1,031,836,692.98-425,806,704.22

Finding the Fourth Proportional to 747,665,128.09, 1,031,836,692.98 and 425,806,704.22

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Solution

The fourth proportional to 747,665,128.09, 1,031,836,692.98 and 425,806,704.22 is: 587,646,748.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,665,128.09 : 1,031,836,692.98 = 425,806,704.22 : x
  2. Step 2: Convert to fraction form
    747,665,128.09/1,031,836,692.98 = 425,806,704.22/x
  3. Step 3: Cross multiply
    747,665,128.09x = 1,031,836,692.98 × 425,806,704.22
  4. Step 4: Simplify right side
    747,665,128.09x = 439,362,981,531,077,824
  5. Step 5: Solve for x
    x = 439,362,981,531,077,824/747,665,128.09
  6. Step 6: Final answer
    x = 587,646,748.56

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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.