Home / 563,609,649.32-777,787,621.64-312,718,583.96

Finding the Fourth Proportional to 563,609,649.32, 777,787,621.64 and 312,718,583.96

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Solution

The fourth proportional to 563,609,649.32, 777,787,621.64 and 312,718,583.96 is: 431,555,144.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,609,649.32 : 777,787,621.64 = 312,718,583.96 : x
  2. Step 2: Convert to fraction form
    563,609,649.32/777,787,621.64 = 312,718,583.96/x
  3. Step 3: Cross multiply
    563,609,649.32x = 777,787,621.64 × 312,718,583.96
  4. Step 4: Simplify right side
    563,609,649.32x = 243,228,643,660,877,024
  5. Step 5: Solve for x
    x = 243,228,643,660,877,024/563,609,649.32
  6. Step 6: Final answer
    x = 431,555,144.51

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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.