Home / 210,190,914.21-315,343,893.06-101,107,334.55

Finding the Fourth Proportional to 210,190,914.21, 315,343,893.06 and 101,107,334.55

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Solution

The fourth proportional to 210,190,914.21, 315,343,893.06 and 101,107,334.55 is: 151,688,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,190,914.21 : 315,343,893.06 = 101,107,334.55 : x
  2. Step 2: Convert to fraction form
    210,190,914.21/315,343,893.06 = 101,107,334.55/x
  3. Step 3: Cross multiply
    210,190,914.21x = 315,343,893.06 × 101,107,334.55
  4. Step 4: Simplify right side
    210,190,914.21x = 31,883,580,493,916,844
  5. Step 5: Solve for x
    x = 31,883,580,493,916,844/210,190,914.21
  6. Step 6: Final answer
    x = 151,688,671.29

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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.