Home / 438,600,399.40-657,648,656.70-131,846,530.60

Finding the Fourth Proportional to 438,600,399.40, 657,648,656.70 and 131,846,530.60

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Solution

The fourth proportional to 438,600,399.40, 657,648,656.70 and 131,846,530.60 is: 197,694,060.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,600,399.40 : 657,648,656.70 = 131,846,530.60 : x
  2. Step 2: Convert to fraction form
    438,600,399.40/657,648,656.70 = 131,846,530.60/x
  3. Step 3: Cross multiply
    438,600,399.40x = 657,648,656.70 × 131,846,530.60
  4. Step 4: Simplify right side
    438,600,399.40x = 86,708,693,739,645,440
  5. Step 5: Solve for x
    x = 86,708,693,739,645,440/438,600,399.40
  6. Step 6: Final answer
    x = 197,694,060.15

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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.