Home / 20,276,679.60-30,421,809.72-6,630,455.28

Finding the Fourth Proportional to 20,276,679.60, 30,421,809.72 and 6,630,455.28

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Solution

The fourth proportional to 20,276,679.60, 30,421,809.72 and 6,630,455.28 is: 9,947,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,276,679.60 : 30,421,809.72 = 6,630,455.28 : x
  2. Step 2: Convert to fraction form
    20,276,679.60/30,421,809.72 = 6,630,455.28/x
  3. Step 3: Cross multiply
    20,276,679.60x = 30,421,809.72 × 6,630,455.28
  4. Step 4: Simplify right side
    20,276,679.60x = 201,710,448,885,129.31
  5. Step 5: Solve for x
    x = 201,710,448,885,129.31/20,276,679.60
  6. Step 6: Final answer
    x = 9,947,903.35

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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.