Home / 90,085,956.40-135,128,934.60-90,085,956.40

Finding the Fourth Proportional to 90,085,956.40, 135,128,934.60 and 90,085,956.40

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Solution

The fourth proportional to 90,085,956.40, 135,128,934.60 and 90,085,956.40 is: 135,128,934.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,085,956.40 : 135,128,934.60 = 90,085,956.40 : x
  2. Step 2: Convert to fraction form
    90,085,956.40/135,128,934.60 = 90,085,956.40/x
  3. Step 3: Cross multiply
    90,085,956.40x = 135,128,934.60 × 90,085,956.40
  4. Step 4: Simplify right side
    90,085,956.40x = 12,173,219,310,754,052
  5. Step 5: Solve for x
    x = 12,173,219,310,754,052/90,085,956.40
  6. Step 6: Final answer
    x = 135,128,934.60

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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.