Home / 811,976,256.18-1,120,399,242.78-472,940,529.29

Finding the Fourth Proportional to 811,976,256.18, 1,120,399,242.78 and 472,940,529.29

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Solution

The fourth proportional to 811,976,256.18, 1,120,399,242.78 and 472,940,529.29 is: 652,583,381.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,976,256.18 : 1,120,399,242.78 = 472,940,529.29 : x
  2. Step 2: Convert to fraction form
    811,976,256.18/1,120,399,242.78 = 472,940,529.29/x
  3. Step 3: Cross multiply
    811,976,256.18x = 1,120,399,242.78 × 472,940,529.29
  4. Step 4: Simplify right side
    811,976,256.18x = 529,882,210,896,885,056
  5. Step 5: Solve for x
    x = 529,882,210,896,885,056/811,976,256.18
  6. Step 6: Final answer
    x = 652,583,381.43

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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.