Home / 563,609,641.32-777,787,610.58-312,718,575.96

Finding the Fourth Proportional to 563,609,641.32, 777,787,610.58 and 312,718,575.96

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Solution

The fourth proportional to 563,609,641.32, 777,787,610.58 and 312,718,575.96 is: 431,555,133.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,609,641.32 : 777,787,610.58 = 312,718,575.96 : x
  2. Step 2: Convert to fraction form
    563,609,641.32/777,787,610.58 = 312,718,575.96/x
  3. Step 3: Cross multiply
    563,609,641.32x = 777,787,610.58 × 312,718,575.96
  4. Step 4: Simplify right side
    563,609,641.32x = 243,228,633,979,908,640
  5. Step 5: Solve for x
    x = 243,228,633,979,908,640/563,609,641.32
  6. Step 6: Final answer
    x = 431,555,133.46

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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.