Home / 424,642,515.84-636,667,643.34-188,163,420.06

Finding the Fourth Proportional to 424,642,515.84, 636,667,643.34 and 188,163,420.06

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Solution

The fourth proportional to 424,642,515.84, 636,667,643.34 and 188,163,420.06 is: 282,113,911.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,642,515.84 : 636,667,643.34 = 188,163,420.06 : x
  2. Step 2: Convert to fraction form
    424,642,515.84/636,667,643.34 = 188,163,420.06/x
  3. Step 3: Cross multiply
    424,642,515.84x = 636,667,643.34 × 188,163,420.06
  4. Step 4: Simplify right side
    424,642,515.84x = 119,797,561,212,394,688
  5. Step 5: Solve for x
    x = 119,797,561,212,394,688/424,642,515.84
  6. Step 6: Final answer
    x = 282,113,911.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.