Home / 13,291,047-18,341,654.58-7,179,475.50

Finding the Fourth Proportional to 13,291,047, 18,341,654.58 and 7,179,475.50

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Solution

The fourth proportional to 13,291,047, 18,341,654.58 and 7,179,475.50 is: 9,907,681.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,047 : 18,341,654.58 = 7,179,475.50 : x
  2. Step 2: Convert to fraction form
    13,291,047/18,341,654.58 = 7,179,475.50/x
  3. Step 3: Cross multiply
    13,291,047x = 18,341,654.58 × 7,179,475.50
  4. Step 4: Simplify right side
    13,291,047x = 131,683,459,686,572.78
  5. Step 5: Solve for x
    x = 131,683,459,686,572.78/13,291,047
  6. Step 6: Final answer
    x = 9,907,681.44

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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.