Home / 279,167,518.11-385,254,025.98-153,731,378.61

Finding the Fourth Proportional to 279,167,518.11, 385,254,025.98 and 153,731,378.61

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Solution

The fourth proportional to 279,167,518.11, 385,254,025.98 and 153,731,378.61 is: 212,150,872.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,167,518.11 : 385,254,025.98 = 153,731,378.61 : x
  2. Step 2: Convert to fraction form
    279,167,518.11/385,254,025.98 = 153,731,378.61/x
  3. Step 3: Cross multiply
    279,167,518.11x = 385,254,025.98 × 153,731,378.61
  4. Step 4: Simplify right side
    279,167,518.11x = 59,225,632,528,958,168
  5. Step 5: Solve for x
    x = 59,225,632,528,958,168/279,167,518.11
  6. Step 6: Final answer
    x = 212,150,872.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.