Home / 127,848,087.40-191,772,131.10-42,747,543.40

Finding the Fourth Proportional to 127,848,087.40, 191,772,131.10 and 42,747,543.40

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Solution

The fourth proportional to 127,848,087.40, 191,772,131.10 and 42,747,543.40 is: 64,121,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,848,087.40 : 191,772,131.10 = 42,747,543.40 : x
  2. Step 2: Convert to fraction form
    127,848,087.40/191,772,131.10 = 42,747,543.40/x
  3. Step 3: Cross multiply
    127,848,087.40x = 191,772,131.10 × 42,747,543.40
  4. Step 4: Simplify right side
    127,848,087.40x = 8,197,787,497,107,739
  5. Step 5: Solve for x
    x = 8,197,787,497,107,739/127,848,087.40
  6. Step 6: Final answer
    x = 64,121,315.10

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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.