Home / 10,780,816.80-16,133,900.40-9,885,021.60

Finding the Fourth Proportional to 10,780,816.80, 16,133,900.40 and 9,885,021.60

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Solution

The fourth proportional to 10,780,816.80, 16,133,900.40 and 9,885,021.60 is: 14,793,308.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780,816.80 : 16,133,900.40 = 9,885,021.60 : x
  2. Step 2: Convert to fraction form
    10,780,816.80/16,133,900.40 = 9,885,021.60/x
  3. Step 3: Cross multiply
    10,780,816.80x = 16,133,900.40 × 9,885,021.60
  4. Step 4: Simplify right side
    10,780,816.80x = 159,483,953,946,248.62
  5. Step 5: Solve for x
    x = 159,483,953,946,248.62/10,780,816.80
  6. Step 6: Final answer
    x = 14,793,308.98

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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.