Home / 279,113,423.40-418,670,135.10-126,058,415.40

Finding the Fourth Proportional to 279,113,423.40, 418,670,135.10 and 126,058,415.40

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Solution

The fourth proportional to 279,113,423.40, 418,670,135.10 and 126,058,415.40 is: 189,087,623.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,113,423.40 : 418,670,135.10 = 126,058,415.40 : x
  2. Step 2: Convert to fraction form
    279,113,423.40/418,670,135.10 = 126,058,415.40/x
  3. Step 3: Cross multiply
    279,113,423.40x = 418,670,135.10 × 126,058,415.40
  4. Step 4: Simplify right side
    279,113,423.40x = 52,776,893,806,009,928
  5. Step 5: Solve for x
    x = 52,776,893,806,009,928/279,113,423.40
  6. Step 6: Final answer
    x = 189,087,623.10

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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.