Home / 465,477,143.94-642,971,624.81-345,019,326.42

Finding the Fourth Proportional to 465,477,143.94, 642,971,624.81 and 345,019,326.42

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Solution

The fourth proportional to 465,477,143.94, 642,971,624.81 and 345,019,326.42 is: 476,581,159.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,477,143.94 : 642,971,624.81 = 345,019,326.42 : x
  2. Step 2: Convert to fraction form
    465,477,143.94/642,971,624.81 = 345,019,326.42/x
  3. Step 3: Cross multiply
    465,477,143.94x = 642,971,624.81 × 345,019,326.42
  4. Step 4: Simplify right side
    465,477,143.94x = 221,837,636,897,394,048
  5. Step 5: Solve for x
    x = 221,837,636,897,394,048/465,477,143.94
  6. Step 6: Final answer
    x = 476,581,159.32

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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.