Home / 154,009,267.88-212,543,217.16-87,004,986.82

Finding the Fourth Proportional to 154,009,267.88, 212,543,217.16 and 87,004,986.82

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Solution

The fourth proportional to 154,009,267.88, 212,543,217.16 and 87,004,986.82 is: 120,072,772.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,009,267.88 : 212,543,217.16 = 87,004,986.82 : x
  2. Step 2: Convert to fraction form
    154,009,267.88/212,543,217.16 = 87,004,986.82/x
  3. Step 3: Cross multiply
    154,009,267.88x = 212,543,217.16 × 87,004,986.82
  4. Step 4: Simplify right side
    154,009,267.88x = 18,492,319,806,937,328
  5. Step 5: Solve for x
    x = 18,492,319,806,937,328/154,009,267.88
  6. Step 6: Final answer
    x = 120,072,772.65

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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.