Home / 115,090,379.20-172,352,133.60-54,435,246.40

Finding the Fourth Proportional to 115,090,379.20, 172,352,133.60 and 54,435,246.40

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Solution

The fourth proportional to 115,090,379.20, 172,352,133.60 and 54,435,246.40 is: 81,518,810.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,090,379.20 : 172,352,133.60 = 54,435,246.40 : x
  2. Step 2: Convert to fraction form
    115,090,379.20/172,352,133.60 = 54,435,246.40/x
  3. Step 3: Cross multiply
    115,090,379.20x = 172,352,133.60 × 54,435,246.40
  4. Step 4: Simplify right side
    115,090,379.20x = 9,382,030,860,081,718
  5. Step 5: Solve for x
    x = 9,382,030,860,081,718/115,090,379.20
  6. Step 6: Final answer
    x = 81,518,810.91

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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.