Home / 126,029,126.40-189,185,407.20-97,402,171.20

Finding the Fourth Proportional to 126,029,126.40, 189,185,407.20 and 97,402,171.20

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Solution

The fourth proportional to 126,029,126.40, 189,185,407.20 and 97,402,171.20 is: 146,212,783.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,029,126.40 : 189,185,407.20 = 97,402,171.20 : x
  2. Step 2: Convert to fraction form
    126,029,126.40/189,185,407.20 = 97,402,171.20/x
  3. Step 3: Cross multiply
    126,029,126.40x = 189,185,407.20 × 97,402,171.20
  4. Step 4: Simplify right side
    126,029,126.40x = 18,427,069,420,636,112
  5. Step 5: Solve for x
    x = 18,427,069,420,636,112/126,029,126.40
  6. Step 6: Final answer
    x = 146,212,783.88

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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.