Home / 768,075,778.72-1,059,947,250.96-415,651,681.12

Finding the Fourth Proportional to 768,075,778.72, 1,059,947,250.96 and 415,651,681.12

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Solution

The fourth proportional to 768,075,778.72, 1,059,947,250.96 and 415,651,681.12 is: 573,600,768.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,075,778.72 : 1,059,947,250.96 = 415,651,681.12 : x
  2. Step 2: Convert to fraction form
    768,075,778.72/1,059,947,250.96 = 415,651,681.12/x
  3. Step 3: Cross multiply
    768,075,778.72x = 1,059,947,250.96 × 415,651,681.12
  4. Step 4: Simplify right side
    768,075,778.72x = 440,568,856,760,046,528
  5. Step 5: Solve for x
    x = 440,568,856,760,046,528/768,075,778.72
  6. Step 6: Final answer
    x = 573,600,768.27

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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.