Home / 91,117,693.51-125,742,335.81-51,433,577.28

Finding the Fourth Proportional to 91,117,693.51, 125,742,335.81 and 51,433,577.28

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Solution

The fourth proportional to 91,117,693.51, 125,742,335.81 and 51,433,577.28 is: 70,978,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,117,693.51 : 125,742,335.81 = 51,433,577.28 : x
  2. Step 2: Convert to fraction form
    91,117,693.51/125,742,335.81 = 51,433,577.28/x
  3. Step 3: Cross multiply
    91,117,693.51x = 125,742,335.81 × 51,433,577.28
  4. Step 4: Simplify right side
    91,117,693.51x = 6,467,378,146,437,118
  5. Step 5: Solve for x
    x = 6,467,378,146,437,118/91,117,693.51
  6. Step 6: Final answer
    x = 70,978,290.79

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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.