Home / 90,997,085.78-125,576,813.94-51,838,282.16

Finding the Fourth Proportional to 90,997,085.78, 125,576,813.94 and 51,838,282.16

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Solution

The fourth proportional to 90,997,085.78, 125,576,813.94 and 51,838,282.16 is: 71,537,305.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,997,085.78 : 125,576,813.94 = 51,838,282.16 : x
  2. Step 2: Convert to fraction form
    90,997,085.78/125,576,813.94 = 51,838,282.16/x
  3. Step 3: Cross multiply
    90,997,085.78x = 125,576,813.94 × 51,838,282.16
  4. Step 4: Simplify right side
    90,997,085.78x = 6,509,686,313,775,541
  5. Step 5: Solve for x
    x = 6,509,686,313,775,541/90,997,085.78
  6. Step 6: Final answer
    x = 71,537,305.38

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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.