Home / 462,973,330.11-638,612,577.15-274,668,308.05

Finding the Fourth Proportional to 462,973,330.11, 638,612,577.15 and 274,668,308.05

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Solution

The fourth proportional to 462,973,330.11, 638,612,577.15 and 274,668,308.05 is: 378,869,849.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,973,330.11 : 638,612,577.15 = 274,668,308.05 : x
  2. Step 2: Convert to fraction form
    462,973,330.11/638,612,577.15 = 274,668,308.05/x
  3. Step 3: Cross multiply
    462,973,330.11x = 638,612,577.15 × 274,668,308.05
  4. Step 4: Simplify right side
    462,973,330.11x = 175,406,636,065,240,608
  5. Step 5: Solve for x
    x = 175,406,636,065,240,608/462,973,330.11
  6. Step 6: Final answer
    x = 378,869,849.85

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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.