Home / 91,117,947.90-125,742,686.22-51,433,833.54

Finding the Fourth Proportional to 91,117,947.90, 125,742,686.22 and 51,433,833.54

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Solution

The fourth proportional to 91,117,947.90, 125,742,686.22 and 51,433,833.54 is: 70,978,644.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,117,947.90 : 125,742,686.22 = 51,433,833.54 : x
  2. Step 2: Convert to fraction form
    91,117,947.90/125,742,686.22 = 51,433,833.54/x
  3. Step 3: Cross multiply
    91,117,947.90x = 125,742,686.22 × 51,433,833.54
  4. Step 4: Simplify right side
    91,117,947.90x = 6,467,428,391,911,932
  5. Step 5: Solve for x
    x = 6,467,428,391,911,932/91,117,947.90
  6. Step 6: Final answer
    x = 70,978,644.06

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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.