Home / 525,311,617.40-787,967,426.10-161,758,734.20

Finding the Fourth Proportional to 525,311,617.40, 787,967,426.10 and 161,758,734.20

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Solution

The fourth proportional to 525,311,617.40, 787,967,426.10 and 161,758,734.20 is: 242,638,101.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,311,617.40 : 787,967,426.10 = 161,758,734.20 : x
  2. Step 2: Convert to fraction form
    525,311,617.40/787,967,426.10 = 161,758,734.20/x
  3. Step 3: Cross multiply
    525,311,617.40x = 787,967,426.10 × 161,758,734.20
  4. Step 4: Simplify right side
    525,311,617.40x = 127,460,613,436,768,032
  5. Step 5: Solve for x
    x = 127,460,613,436,768,032/525,311,617.40
  6. Step 6: Final answer
    x = 242,638,101.30

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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.