Home / 199,331,828.40-298,997,742.60-172,068,905.10

Finding the Fourth Proportional to 199,331,828.40, 298,997,742.60 and 172,068,905.10

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Solution

The fourth proportional to 199,331,828.40, 298,997,742.60 and 172,068,905.10 is: 258,103,357.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,331,828.40 : 298,997,742.60 = 172,068,905.10 : x
  2. Step 2: Convert to fraction form
    199,331,828.40/298,997,742.60 = 172,068,905.10/x
  3. Step 3: Cross multiply
    199,331,828.40x = 298,997,742.60 × 172,068,905.10
  4. Step 4: Simplify right side
    199,331,828.40x = 51,448,214,196,553,632
  5. Step 5: Solve for x
    x = 51,448,214,196,553,632/199,331,828.40
  6. Step 6: Final answer
    x = 258,103,357.65

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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.