Home / 20,000,478.18-30,000,498.39-4,854,409.68

Finding the Fourth Proportional to 20,000,478.18, 30,000,498.39 and 4,854,409.68

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Solution

The fourth proportional to 20,000,478.18, 30,000,498.39 and 4,854,409.68 is: 7,281,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,000,478.18 : 30,000,498.39 = 4,854,409.68 : x
  2. Step 2: Convert to fraction form
    20,000,478.18/30,000,498.39 = 4,854,409.68/x
  3. Step 3: Cross multiply
    20,000,478.18x = 30,000,498.39 × 4,854,409.68
  4. Step 4: Simplify right side
    20,000,478.18x = 145,634,709,789,240.41
  5. Step 5: Solve for x
    x = 145,634,709,789,240.41/20,000,478.18
  6. Step 6: Final answer
    x = 7,281,561.39

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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.