Home / 425,360,152.30-638,045,308.79-118,633,603.18

Finding the Fourth Proportional to 425,360,152.30, 638,045,308.79 and 118,633,603.18

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Solution

The fourth proportional to 425,360,152.30, 638,045,308.79 and 118,633,603.18 is: 177,951,821.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,360,152.30 : 638,045,308.79 = 118,633,603.18 : x
  2. Step 2: Convert to fraction form
    425,360,152.30/638,045,308.79 = 118,633,603.18/x
  3. Step 3: Cross multiply
    425,360,152.30x = 638,045,308.79 × 118,633,603.18
  4. Step 4: Simplify right side
    425,360,152.30x = 75,693,613,973,853,424
  5. Step 5: Solve for x
    x = 75,693,613,973,853,424/425,360,152.30
  6. Step 6: Final answer
    x = 177,951,821.68

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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.