Home / 1,565,955,322.36-2,161,156,056.78-861,231,475.96

Finding the Fourth Proportional to 1,565,955,322.36, 2,161,156,056.78 and 861,231,475.96

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Solution

The fourth proportional to 1,565,955,322.36, 2,161,156,056.78 and 861,231,475.96 is: 1,188,575,174.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,955,322.36 : 2,161,156,056.78 = 861,231,475.96 : x
  2. Step 2: Convert to fraction form
    1,565,955,322.36/2,161,156,056.78 = 861,231,475.96/x
  3. Step 3: Cross multiply
    1,565,955,322.36x = 2,161,156,056.78 × 861,231,475.96
  4. Step 4: Simplify right side
    1,565,955,322.36x = 1,861,255,620,560,533,248
  5. Step 5: Solve for x
    x = 1,861,255,620,560,533,248/1,565,955,322.36
  6. Step 6: Final answer
    x = 1,188,575,174.52

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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.