Home / 127,476,431.20-190,962,704.40-69,865,602.40

Finding the Fourth Proportional to 127,476,431.20, 190,962,704.40 and 69,865,602.40

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Solution

The fourth proportional to 127,476,431.20, 190,962,704.40 and 69,865,602.40 is: 104,660,322.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,476,431.20 : 190,962,704.40 = 69,865,602.40 : x
  2. Step 2: Convert to fraction form
    127,476,431.20/190,962,704.40 = 69,865,602.40/x
  3. Step 3: Cross multiply
    127,476,431.20x = 190,962,704.40 × 69,865,602.40
  4. Step 4: Simplify right side
    127,476,431.20x = 13,341,724,378,839,132
  5. Step 5: Solve for x
    x = 13,341,724,378,839,132/127,476,431.20
  6. Step 6: Final answer
    x = 104,660,322.33

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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.