Home / 13,009,978.76-17,953,753.08-7,209,136.16

Finding the Fourth Proportional to 13,009,978.76, 17,953,753.08 and 7,209,136.16

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Solution

The fourth proportional to 13,009,978.76, 17,953,753.08 and 7,209,136.16 is: 9,948,598.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,009,978.76 : 17,953,753.08 = 7,209,136.16 : x
  2. Step 2: Convert to fraction form
    13,009,978.76/17,953,753.08 = 7,209,136.16/x
  3. Step 3: Cross multiply
    13,009,978.76x = 17,953,753.08 × 7,209,136.16
  4. Step 4: Simplify right side
    13,009,978.76x = 129,431,050,536,739.36
  5. Step 5: Solve for x
    x = 129,431,050,536,739.36/13,009,978.76
  6. Step 6: Final answer
    x = 9,948,598.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.