Home / 5,390,006.40-8,085,139.20-1,603,612.80

Finding the Fourth Proportional to 5,390,006.40, 8,085,139.20 and 1,603,612.80

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Solution

The fourth proportional to 5,390,006.40, 8,085,139.20 and 1,603,612.80 is: 2,405,457.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390,006.40 : 8,085,139.20 = 1,603,612.80 : x
  2. Step 2: Convert to fraction form
    5,390,006.40/8,085,139.20 = 1,603,612.80/x
  3. Step 3: Cross multiply
    5,390,006.40x = 8,085,139.20 × 1,603,612.80
  4. Step 4: Simplify right side
    5,390,006.40x = 12,965,432,710,901.76
  5. Step 5: Solve for x
    x = 12,965,432,710,901.76/5,390,006.40
  6. Step 6: Final answer
    x = 2,405,457.76

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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.