Home / 202,136,305.20-303,204,457.80-72,748,136.40

Finding the Fourth Proportional to 202,136,305.20, 303,204,457.80 and 72,748,136.40

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Solution

The fourth proportional to 202,136,305.20, 303,204,457.80 and 72,748,136.40 is: 109,122,204.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,136,305.20 : 303,204,457.80 = 72,748,136.40 : x
  2. Step 2: Convert to fraction form
    202,136,305.20/303,204,457.80 = 72,748,136.40/x
  3. Step 3: Cross multiply
    202,136,305.20x = 303,204,457.80 × 72,748,136.40
  4. Step 4: Simplify right side
    202,136,305.20x = 22,057,559,253,122,448
  5. Step 5: Solve for x
    x = 22,057,559,253,122,448/202,136,305.20
  6. Step 6: Final answer
    x = 109,122,204.60

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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.