Home / 7,172,420.32-9,897,943.73-4,074,949.07

Finding the Fourth Proportional to 7,172,420.32, 9,897,943.73 and 4,074,949.07

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Solution

The fourth proportional to 7,172,420.32, 9,897,943.73 and 4,074,949.07 is: 5,623,431.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,172,420.32 : 9,897,943.73 = 4,074,949.07 : x
  2. Step 2: Convert to fraction form
    7,172,420.32/9,897,943.73 = 4,074,949.07/x
  3. Step 3: Cross multiply
    7,172,420.32x = 9,897,943.73 × 4,074,949.07
  4. Step 4: Simplify right side
    7,172,420.32x = 40,333,616,597,475.83
  5. Step 5: Solve for x
    x = 40,333,616,597,475.83/7,172,420.32
  6. Step 6: Final answer
    x = 5,623,431.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.