Home / 112,356,467.80-168,660,672.90-86,910,285.40

Finding the Fourth Proportional to 112,356,467.80, 168,660,672.90 and 86,910,285.40

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Solution

The fourth proportional to 112,356,467.80, 168,660,672.90 and 86,910,285.40 is: 130,462,869.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,356,467.80 : 168,660,672.90 = 86,910,285.40 : x
  2. Step 2: Convert to fraction form
    112,356,467.80/168,660,672.90 = 86,910,285.40/x
  3. Step 3: Cross multiply
    112,356,467.80x = 168,660,672.90 × 86,910,285.40
  4. Step 4: Simplify right side
    112,356,467.80x = 14,658,347,217,495,048
  5. Step 5: Solve for x
    x = 14,658,347,217,495,048/112,356,467.80
  6. Step 6: Final answer
    x = 130,462,869.69

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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.