Home / 20,993,890.60-31,490,835.90-19,798,148.35

Finding the Fourth Proportional to 20,993,890.60, 31,490,835.90 and 19,798,148.35

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Solution

The fourth proportional to 20,993,890.60, 31,490,835.90 and 19,798,148.35 is: 29,697,222.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,993,890.60 : 31,490,835.90 = 19,798,148.35 : x
  2. Step 2: Convert to fraction form
    20,993,890.60/31,490,835.90 = 19,798,148.35/x
  3. Step 3: Cross multiply
    20,993,890.60x = 31,490,835.90 × 19,798,148.35
  4. Step 4: Simplify right side
    20,993,890.60x = 623,460,240,813,705.75
  5. Step 5: Solve for x
    x = 623,460,240,813,705.75/20,993,890.60
  6. Step 6: Final answer
    x = 29,697,222.53

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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.