Home / 663,435,685.75-915,872,701.32-412,620,924.82

Finding the Fourth Proportional to 663,435,685.75, 915,872,701.32 and 412,620,924.82

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Solution

The fourth proportional to 663,435,685.75, 915,872,701.32 and 412,620,924.82 is: 569,623,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,435,685.75 : 915,872,701.32 = 412,620,924.82 : x
  2. Step 2: Convert to fraction form
    663,435,685.75/915,872,701.32 = 412,620,924.82/x
  3. Step 3: Cross multiply
    663,435,685.75x = 915,872,701.32 × 412,620,924.82
  4. Step 4: Simplify right side
    663,435,685.75x = 377,908,241,036,050,048
  5. Step 5: Solve for x
    x = 377,908,241,036,050,048/663,435,685.75
  6. Step 6: Final answer
    x = 569,623,023.23

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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.