Home / 350,411,989.52-525,619,755.76-91,627,778.72

Finding the Fourth Proportional to 350,411,989.52, 525,619,755.76 and 91,627,778.72

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Solution

The fourth proportional to 350,411,989.52, 525,619,755.76 and 91,627,778.72 is: 137,442,131.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,411,989.52 : 525,619,755.76 = 91,627,778.72 : x
  2. Step 2: Convert to fraction form
    350,411,989.52/525,619,755.76 = 91,627,778.72/x
  3. Step 3: Cross multiply
    350,411,989.52x = 525,619,755.76 × 91,627,778.72
  4. Step 4: Simplify right side
    350,411,989.52x = 48,161,370,671,637,720
  5. Step 5: Solve for x
    x = 48,161,370,671,637,720/350,411,989.52
  6. Step 6: Final answer
    x = 137,442,131.30

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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.