Home / 122,168,900.34-168,647,428.89-72,625,312.98

Finding the Fourth Proportional to 122,168,900.34, 168,647,428.89 and 72,625,312.98

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Solution

The fourth proportional to 122,168,900.34, 168,647,428.89 and 72,625,312.98 is: 100,255,239.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,168,900.34 : 168,647,428.89 = 72,625,312.98 : x
  2. Step 2: Convert to fraction form
    122,168,900.34/168,647,428.89 = 72,625,312.98/x
  3. Step 3: Cross multiply
    122,168,900.34x = 168,647,428.89 × 72,625,312.98
  4. Step 4: Simplify right side
    122,168,900.34x = 12,248,072,306,408,544
  5. Step 5: Solve for x
    x = 12,248,072,306,408,544/122,168,900.34
  6. Step 6: Final answer
    x = 100,255,239.04

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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.