Home / 12,580,802.40-18,885,200.40-7,793,896.80

Finding the Fourth Proportional to 12,580,802.40, 18,885,200.40 and 7,793,896.80

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Solution

The fourth proportional to 12,580,802.40, 18,885,200.40 and 7,793,896.80 is: 11,699,516.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580,802.40 : 18,885,200.40 = 7,793,896.80 : x
  2. Step 2: Convert to fraction form
    12,580,802.40/18,885,200.40 = 7,793,896.80/x
  3. Step 3: Cross multiply
    12,580,802.40x = 18,885,200.40 × 7,793,896.80
  4. Step 4: Simplify right side
    12,580,802.40x = 147,189,302,964,918.72
  5. Step 5: Solve for x
    x = 147,189,302,964,918.72/12,580,802.40
  6. Step 6: Final answer
    x = 11,699,516.32

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1.5x scale

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.