Home / 3,118,128.40-4,648,369.68-3,068,990.76

Finding the Fourth Proportional to 3,118,128.40, 4,648,369.68 and 3,068,990.76

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Solution

The fourth proportional to 3,118,128.40, 4,648,369.68 and 3,068,990.76 is: 4,575,117.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,128.40 : 4,648,369.68 = 3,068,990.76 : x
  2. Step 2: Convert to fraction form
    3,118,128.40/4,648,369.68 = 3,068,990.76/x
  3. Step 3: Cross multiply
    3,118,128.40x = 4,648,369.68 × 3,068,990.76
  4. Step 4: Simplify right side
    3,118,128.40x = 14,265,803,596,984.15
  5. Step 5: Solve for x
    x = 14,265,803,596,984.15/3,118,128.40
  6. Step 6: Final answer
    x = 4,575,117.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.