Home / 112,493,283.45-168,739,925.18-78,453,065.85

Finding the Fourth Proportional to 112,493,283.45, 168,739,925.18 and 78,453,065.85

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Solution

The fourth proportional to 112,493,283.45, 168,739,925.18 and 78,453,065.85 is: 117,679,598.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,493,283.45 : 168,739,925.18 = 78,453,065.85 : x
  2. Step 2: Convert to fraction form
    112,493,283.45/168,739,925.18 = 78,453,065.85/x
  3. Step 3: Cross multiply
    112,493,283.45x = 168,739,925.18 × 78,453,065.85
  4. Step 4: Simplify right side
    112,493,283.45x = 13,238,164,461,278,348
  5. Step 5: Solve for x
    x = 13,238,164,461,278,348/112,493,283.45
  6. Step 6: Final answer
    x = 117,679,598.78

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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.