Home / 125,299,912.40-187,949,868.60-91,287,688.40

Finding the Fourth Proportional to 125,299,912.40, 187,949,868.60 and 91,287,688.40

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Solution

The fourth proportional to 125,299,912.40, 187,949,868.60 and 91,287,688.40 is: 136,931,532.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,299,912.40 : 187,949,868.60 = 91,287,688.40 : x
  2. Step 2: Convert to fraction form
    125,299,912.40/187,949,868.60 = 91,287,688.40/x
  3. Step 3: Cross multiply
    125,299,912.40x = 187,949,868.60 × 91,287,688.40
  4. Step 4: Simplify right side
    125,299,912.40x = 17,157,509,039,577,744
  5. Step 5: Solve for x
    x = 17,157,509,039,577,744/125,299,912.40
  6. Step 6: Final answer
    x = 136,931,532.60

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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.