Home / 438,739,832.40-658,109,748.60-111,214,712.40

Finding the Fourth Proportional to 438,739,832.40, 658,109,748.60 and 111,214,712.40

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Solution

The fourth proportional to 438,739,832.40, 658,109,748.60 and 111,214,712.40 is: 166,822,068.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,739,832.40 : 658,109,748.60 = 111,214,712.40 : x
  2. Step 2: Convert to fraction form
    438,739,832.40/658,109,748.60 = 111,214,712.40/x
  3. Step 3: Cross multiply
    438,739,832.40x = 658,109,748.60 × 111,214,712.40
  4. Step 4: Simplify right side
    438,739,832.40x = 73,191,486,418,185,312
  5. Step 5: Solve for x
    x = 73,191,486,418,185,312/438,739,832.40
  6. Step 6: Final answer
    x = 166,822,068.60

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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.