Home / 387,950,824.22-535,364,548.67-211,740,082.70

Finding the Fourth Proportional to 387,950,824.22, 535,364,548.67 and 211,740,082.70

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Solution

The fourth proportional to 387,950,824.22, 535,364,548.67 and 211,740,082.70 is: 292,197,172.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,950,824.22 : 535,364,548.67 = 211,740,082.70 : x
  2. Step 2: Convert to fraction form
    387,950,824.22/535,364,548.67 = 211,740,082.70/x
  3. Step 3: Cross multiply
    387,950,824.22x = 535,364,548.67 × 211,740,082.70
  4. Step 4: Simplify right side
    387,950,824.22x = 113,358,133,807,886,496
  5. Step 5: Solve for x
    x = 113,358,133,807,886,496/387,950,824.22
  6. Step 6: Final answer
    x = 292,197,172.25

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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.