Home / 112,752,807.60-169,129,211.40-79,874,324.40

Finding the Fourth Proportional to 112,752,807.60, 169,129,211.40 and 79,874,324.40

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Solution

The fourth proportional to 112,752,807.60, 169,129,211.40 and 79,874,324.40 is: 119,811,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,752,807.60 : 169,129,211.40 = 79,874,324.40 : x
  2. Step 2: Convert to fraction form
    112,752,807.60/169,129,211.40 = 79,874,324.40/x
  3. Step 3: Cross multiply
    112,752,807.60x = 169,129,211.40 × 79,874,324.40
  4. Step 4: Simplify right side
    112,752,807.60x = 13,509,081,496,879,780
  5. Step 5: Solve for x
    x = 13,509,081,496,879,780/112,752,807.60
  6. Step 6: Final answer
    x = 119,811,486.60

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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.