Home / 90,079,548.72-135,119,337.12-21,922,240.20

Finding the Fourth Proportional to 90,079,548.72, 135,119,337.12 and 21,922,240.20

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Solution

The fourth proportional to 90,079,548.72, 135,119,337.12 and 21,922,240.20 is: 32,883,363.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,079,548.72 : 135,119,337.12 = 21,922,240.20 : x
  2. Step 2: Convert to fraction form
    90,079,548.72/135,119,337.12 = 21,922,240.20/x
  3. Step 3: Cross multiply
    90,079,548.72x = 135,119,337.12 × 21,922,240.20
  4. Step 4: Simplify right side
    90,079,548.72x = 2,962,118,564,009,416
  5. Step 5: Solve for x
    x = 2,962,118,564,009,416/90,079,548.72
  6. Step 6: Final answer
    x = 32,883,363.72

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Double scale
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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.