Home / 20,919,901.60-31,373,631.60-8,133,047.20

Finding the Fourth Proportional to 20,919,901.60, 31,373,631.60 and 8,133,047.20

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Solution

The fourth proportional to 20,919,901.60, 31,373,631.60 and 8,133,047.20 is: 12,197,152.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,901.60 : 31,373,631.60 = 8,133,047.20 : x
  2. Step 2: Convert to fraction form
    20,919,901.60/31,373,631.60 = 8,133,047.20/x
  3. Step 3: Cross multiply
    20,919,901.60x = 31,373,631.60 × 8,133,047.20
  4. Step 4: Simplify right side
    20,919,901.60x = 255,163,226,638,211.53
  5. Step 5: Solve for x
    x = 255,163,226,638,211.53/20,919,901.60
  6. Step 6: Final answer
    x = 12,197,152.33

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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.