Home / 81,673,420.10-122,510,130.15-81,673,420.10

Finding the Fourth Proportional to 81,673,420.10, 122,510,130.15 and 81,673,420.10

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Solution

The fourth proportional to 81,673,420.10, 122,510,130.15 and 81,673,420.10 is: 122,510,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,673,420.10 : 122,510,130.15 = 81,673,420.10 : x
  2. Step 2: Convert to fraction form
    81,673,420.10/122,510,130.15 = 81,673,420.10/x
  3. Step 3: Cross multiply
    81,673,420.10x = 122,510,130.15 × 81,673,420.10
  4. Step 4: Simplify right side
    81,673,420.10x = 10,005,821,326,246,626
  5. Step 5: Solve for x
    x = 10,005,821,326,246,626/81,673,420.10
  6. Step 6: Final answer
    x = 122,510,130.15

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Double scale
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1.5x scale

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.