Home / 20,421,956.40-30,590,944.20-14,039,415.60

Finding the Fourth Proportional to 20,421,956.40, 30,590,944.20 and 14,039,415.60

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Solution

The fourth proportional to 20,421,956.40, 30,590,944.20 and 14,039,415.60 is: 21,030,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,956.40 : 30,590,944.20 = 14,039,415.60 : x
  2. Step 2: Convert to fraction form
    20,421,956.40/30,590,944.20 = 14,039,415.60/x
  3. Step 3: Cross multiply
    20,421,956.40x = 30,590,944.20 × 14,039,415.60
  4. Step 4: Simplify right side
    20,421,956.40x = 429,478,979,220,209.50
  5. Step 5: Solve for x
    x = 429,478,979,220,209.50/20,421,956.40
  6. Step 6: Final answer
    x = 21,030,256.40

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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.