Home / 120,742,597.28-166,728,368.40-116,838,126.56

Finding the Fourth Proportional to 120,742,597.28, 166,728,368.40 and 116,838,126.56

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Solution

The fourth proportional to 120,742,597.28, 166,728,368.40 and 116,838,126.56 is: 161,336,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,742,597.28 : 166,728,368.40 = 116,838,126.56 : x
  2. Step 2: Convert to fraction form
    120,742,597.28/166,728,368.40 = 116,838,126.56/x
  3. Step 3: Cross multiply
    120,742,597.28x = 166,728,368.40 × 116,838,126.56
  4. Step 4: Simplify right side
    120,742,597.28x = 19,480,230,208,261,504
  5. Step 5: Solve for x
    x = 19,480,230,208,261,504/120,742,597.28
  6. Step 6: Final answer
    x = 161,336,849.19

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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.