Home / 152,640,931.80-228,961,397.70-91,418,928.60

Finding the Fourth Proportional to 152,640,931.80, 228,961,397.70 and 91,418,928.60

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Solution

The fourth proportional to 152,640,931.80, 228,961,397.70 and 91,418,928.60 is: 137,128,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,640,931.80 : 228,961,397.70 = 91,418,928.60 : x
  2. Step 2: Convert to fraction form
    152,640,931.80/228,961,397.70 = 91,418,928.60/x
  3. Step 3: Cross multiply
    152,640,931.80x = 228,961,397.70 × 91,418,928.60
  4. Step 4: Simplify right side
    152,640,931.80x = 20,931,405,668,492,500
  5. Step 5: Solve for x
    x = 20,931,405,668,492,500/152,640,931.80
  6. Step 6: Final answer
    x = 137,128,392.90

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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.