Home / 90,752,011.40-136,128,017.10-87,224,817.80

Finding the Fourth Proportional to 90,752,011.40, 136,128,017.10 and 87,224,817.80

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Solution

The fourth proportional to 90,752,011.40, 136,128,017.10 and 87,224,817.80 is: 130,837,226.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,752,011.40 : 136,128,017.10 = 87,224,817.80 : x
  2. Step 2: Convert to fraction form
    90,752,011.40/136,128,017.10 = 87,224,817.80/x
  3. Step 3: Cross multiply
    90,752,011.40x = 136,128,017.10 × 87,224,817.80
  4. Step 4: Simplify right side
    90,752,011.40x = 11,873,741,489,022,784
  5. Step 5: Solve for x
    x = 11,873,741,489,022,784/90,752,011.40
  6. Step 6: Final answer
    x = 130,837,226.70

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1.5x scale

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.