Home / 99,657,709.20-149,486,563.80-45,909,997.20

Finding the Fourth Proportional to 99,657,709.20, 149,486,563.80 and 45,909,997.20

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Solution

The fourth proportional to 99,657,709.20, 149,486,563.80 and 45,909,997.20 is: 68,864,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657,709.20 : 149,486,563.80 = 45,909,997.20 : x
  2. Step 2: Convert to fraction form
    99,657,709.20/149,486,563.80 = 45,909,997.20/x
  3. Step 3: Cross multiply
    99,657,709.20x = 149,486,563.80 × 45,909,997.20
  4. Step 4: Simplify right side
    99,657,709.20x = 6,862,927,725,495,622
  5. Step 5: Solve for x
    x = 6,862,927,725,495,622/99,657,709.20
  6. Step 6: Final answer
    x = 68,864,995.80

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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.