Home / 20,705,018.22-28,573,038.90-12,008,347.92

Finding the Fourth Proportional to 20,705,018.22, 28,573,038.90 and 12,008,347.92

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Solution

The fourth proportional to 20,705,018.22, 28,573,038.90 and 12,008,347.92 is: 16,571,586.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,705,018.22 : 28,573,038.90 = 12,008,347.92 : x
  2. Step 2: Convert to fraction form
    20,705,018.22/28,573,038.90 = 12,008,347.92/x
  3. Step 3: Cross multiply
    20,705,018.22x = 28,573,038.90 × 12,008,347.92
  4. Step 4: Simplify right side
    20,705,018.22x = 343,114,992,242,894.06
  5. Step 5: Solve for x
    x = 343,114,992,242,894.06/20,705,018.22
  6. Step 6: Final answer
    x = 16,571,586.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.