Home / 20,276,685.60-30,421,818.72-6,630,461.28

Finding the Fourth Proportional to 20,276,685.60, 30,421,818.72 and 6,630,461.28

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Solution

The fourth proportional to 20,276,685.60, 30,421,818.72 and 6,630,461.28 is: 9,947,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276,685.60 : 30,421,818.72 = 6,630,461.28 : x
  2. Step 2: Convert to fraction form
    20,276,685.60/30,421,818.72 = 6,630,461.28/x
  3. Step 3: Cross multiply
    20,276,685.60x = 30,421,818.72 × 6,630,461.28
  4. Step 4: Simplify right side
    20,276,685.60x = 201,710,691,090,139.16
  5. Step 5: Solve for x
    x = 201,710,691,090,139.16/20,276,685.60
  6. Step 6: Final answer
    x = 9,947,912.35

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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.