Home / 105,185,640.54-157,778,461.20-28,508,668.86

Finding the Fourth Proportional to 105,185,640.54, 157,778,461.20 and 28,508,668.86

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Solution

The fourth proportional to 105,185,640.54, 157,778,461.20 and 28,508,668.86 is: 42,763,003.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,185,640.54 : 157,778,461.20 = 28,508,668.86 : x
  2. Step 2: Convert to fraction form
    105,185,640.54/157,778,461.20 = 28,508,668.86/x
  3. Step 3: Cross multiply
    105,185,640.54x = 157,778,461.20 × 28,508,668.86
  4. Step 4: Simplify right side
    105,185,640.54x = 4,498,053,903,591,158
  5. Step 5: Solve for x
    x = 4,498,053,903,591,158/105,185,640.54
  6. Step 6: Final answer
    x = 42,763,003.40

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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.