Home / 20,698,859.60-31,048,289.40-9,910,607.30

Finding the Fourth Proportional to 20,698,859.60, 31,048,289.40 and 9,910,607.30

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Solution

The fourth proportional to 20,698,859.60, 31,048,289.40 and 9,910,607.30 is: 14,865,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,859.60 : 31,048,289.40 = 9,910,607.30 : x
  2. Step 2: Convert to fraction form
    20,698,859.60/31,048,289.40 = 9,910,607.30/x
  3. Step 3: Cross multiply
    20,698,859.60x = 31,048,289.40 × 9,910,607.30
  4. Step 4: Simplify right side
    20,698,859.60x = 307,707,403,580,152.62
  5. Step 5: Solve for x
    x = 307,707,403,580,152.62/20,698,859.60
  6. Step 6: Final answer
    x = 14,865,910.95

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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.