Home / 12,576,642.79-17,355,839.90-7,069,969.43

Finding the Fourth Proportional to 12,576,642.79, 17,355,839.90 and 7,069,969.43

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Solution

The fourth proportional to 12,576,642.79, 17,355,839.90 and 7,069,969.43 is: 9,756,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,576,642.79 : 17,355,839.90 = 7,069,969.43 : x
  2. Step 2: Convert to fraction form
    12,576,642.79/17,355,839.90 = 7,069,969.43/x
  3. Step 3: Cross multiply
    12,576,642.79x = 17,355,839.90 × 7,069,969.43
  4. Step 4: Simplify right side
    12,576,642.79x = 122,705,257,533,014.02
  5. Step 5: Solve for x
    x = 122,705,257,533,014.02/12,576,642.79
  6. Step 6: Final answer
    x = 9,756,598.77

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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.