Home / 20,807,411.90-31,211,117.85-7,345,600.70

Finding the Fourth Proportional to 20,807,411.90, 31,211,117.85 and 7,345,600.70

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Solution

The fourth proportional to 20,807,411.90, 31,211,117.85 and 7,345,600.70 is: 11,018,401.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,411.90 : 31,211,117.85 = 7,345,600.70 : x
  2. Step 2: Convert to fraction form
    20,807,411.90/31,211,117.85 = 7,345,600.70/x
  3. Step 3: Cross multiply
    20,807,411.90x = 31,211,117.85 × 7,345,600.70
  4. Step 4: Simplify right side
    20,807,411.90x = 229,264,409,126,742.50
  5. Step 5: Solve for x
    x = 229,264,409,126,742.50/20,807,411.90
  6. Step 6: Final answer
    x = 11,018,401.05

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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.