Home / 51,790,842-77,689,995.48-19,878,138

Finding the Fourth Proportional to 51,790,842, 77,689,995.48 and 19,878,138

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Solution

The fourth proportional to 51,790,842, 77,689,995.48 and 19,878,138 is: 29,818,639.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,790,842 : 77,689,995.48 = 19,878,138 : x
  2. Step 2: Convert to fraction form
    51,790,842/77,689,995.48 = 19,878,138/x
  3. Step 3: Cross multiply
    51,790,842x = 77,689,995.48 × 19,878,138
  4. Step 4: Simplify right side
    51,790,842x = 1,544,332,451,370,816.25
  5. Step 5: Solve for x
    x = 1,544,332,451,370,816.25/51,790,842
  6. Step 6: Final answer
    x = 29,818,639.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.