Home / 12,887,430.67-17,784,529.29-7,007,064.78

Finding the Fourth Proportional to 12,887,430.67, 17,784,529.29 and 7,007,064.78

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Solution

The fourth proportional to 12,887,430.67, 17,784,529.29 and 7,007,064.78 is: 9,669,681.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887,430.67 : 17,784,529.29 = 7,007,064.78 : x
  2. Step 2: Convert to fraction form
    12,887,430.67/17,784,529.29 = 7,007,064.78/x
  3. Step 3: Cross multiply
    12,887,430.67x = 17,784,529.29 × 7,007,064.78
  4. Step 4: Simplify right side
    12,887,430.67x = 124,617,348,816,837.41
  5. Step 5: Solve for x
    x = 124,617,348,816,837.41/12,887,430.67
  6. Step 6: Final answer
    x = 9,669,681.41

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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.