Home / 465,928,109.73-642,994,249.55-257,097,700.53

Finding the Fourth Proportional to 465,928,109.73, 642,994,249.55 and 257,097,700.53

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Solution

The fourth proportional to 465,928,109.73, 642,994,249.55 and 257,097,700.53 is: 354,802,252.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,928,109.73 : 642,994,249.55 = 257,097,700.53 : x
  2. Step 2: Convert to fraction form
    465,928,109.73/642,994,249.55 = 257,097,700.53/x
  3. Step 3: Cross multiply
    465,928,109.73x = 642,994,249.55 × 257,097,700.53
  4. Step 4: Simplify right side
    465,928,109.73x = 165,312,343,012,032,480
  5. Step 5: Solve for x
    x = 165,312,343,012,032,480/465,928,109.73
  6. Step 6: Final answer
    x = 354,802,252.88

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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.