Home / 105,190,961.49-157,786,442.87-28,513,989.41

Finding the Fourth Proportional to 105,190,961.49, 157,786,442.87 and 28,513,989.41

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Solution

The fourth proportional to 105,190,961.49, 157,786,442.87 and 28,513,989.41 is: 42,770,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,190,961.49 : 157,786,442.87 = 28,513,989.41 : x
  2. Step 2: Convert to fraction form
    105,190,961.49/157,786,442.87 = 28,513,989.41/x
  3. Step 3: Cross multiply
    105,190,961.49x = 157,786,442.87 × 28,513,989.41
  4. Step 4: Simplify right side
    105,190,961.49x = 4,499,120,960,105,248.50
  5. Step 5: Solve for x
    x = 4,499,120,960,105,248.50/105,190,961.49
  6. Step 6: Final answer
    x = 42,770,984.28

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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.