Home / 165,824,400.80-248,736,601.20-79,518,382.40

Finding the Fourth Proportional to 165,824,400.80, 248,736,601.20 and 79,518,382.40

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Solution

The fourth proportional to 165,824,400.80, 248,736,601.20 and 79,518,382.40 is: 119,277,573.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,824,400.80 : 248,736,601.20 = 79,518,382.40 : x
  2. Step 2: Convert to fraction form
    165,824,400.80/248,736,601.20 = 79,518,382.40/x
  3. Step 3: Cross multiply
    165,824,400.80x = 248,736,601.20 × 79,518,382.40
  4. Step 4: Simplify right side
    165,824,400.80x = 19,779,132,171,097,900
  5. Step 5: Solve for x
    x = 19,779,132,171,097,900/165,824,400.80
  6. Step 6: Final answer
    x = 119,277,573.60

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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.