Home / 13,210,420.80-19,796,968.80-9,771,873.60

Finding the Fourth Proportional to 13,210,420.80, 19,796,968.80 and 9,771,873.60

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Solution

The fourth proportional to 13,210,420.80, 19,796,968.80 and 9,771,873.60 is: 14,644,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,210,420.80 : 19,796,968.80 = 9,771,873.60 : x
  2. Step 2: Convert to fraction form
    13,210,420.80/19,796,968.80 = 9,771,873.60/x
  3. Step 3: Cross multiply
    13,210,420.80x = 19,796,968.80 × 9,771,873.60
  4. Step 4: Simplify right side
    13,210,420.80x = 193,453,476,776,743.69
  5. Step 5: Solve for x
    x = 193,453,476,776,743.69/13,210,420.80
  6. Step 6: Final answer
    x = 14,644,005.65

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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.