Home / 202,378,061.40-279,281,818.14-109,558,569.21

Finding the Fourth Proportional to 202,378,061.40, 279,281,818.14 and 109,558,569.21

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Solution

The fourth proportional to 202,378,061.40, 279,281,818.14 and 109,558,569.21 is: 151,190,876.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,378,061.40 : 279,281,818.14 = 109,558,569.21 : x
  2. Step 2: Convert to fraction form
    202,378,061.40/279,281,818.14 = 109,558,569.21/x
  3. Step 3: Cross multiply
    202,378,061.40x = 279,281,818.14 × 109,558,569.21
  4. Step 4: Simplify right side
    202,378,061.40x = 30,597,716,401,785,820
  5. Step 5: Solve for x
    x = 30,597,716,401,785,820/202,378,061.40
  6. Step 6: Final answer
    x = 151,190,876.08

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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.