Home / 127,848,086.40-191,772,129.60-42,747,542.40

Finding the Fourth Proportional to 127,848,086.40, 191,772,129.60 and 42,747,542.40

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Solution

The fourth proportional to 127,848,086.40, 191,772,129.60 and 42,747,542.40 is: 64,121,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,848,086.40 : 191,772,129.60 = 42,747,542.40 : x
  2. Step 2: Convert to fraction form
    127,848,086.40/191,772,129.60 = 42,747,542.40/x
  3. Step 3: Cross multiply
    127,848,086.40x = 191,772,129.60 × 42,747,542.40
  4. Step 4: Simplify right side
    127,848,086.40x = 8,197,787,241,214,294
  5. Step 5: Solve for x
    x = 8,197,787,241,214,294/127,848,086.40
  6. Step 6: Final answer
    x = 64,121,313.60

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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.