Home / 12,637,329.21-17,439,599.30-7,742,560.77

Finding the Fourth Proportional to 12,637,329.21, 17,439,599.30 and 7,742,560.77

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Solution

The fourth proportional to 12,637,329.21, 17,439,599.30 and 7,742,560.77 is: 10,684,785.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637,329.21 : 17,439,599.30 = 7,742,560.77 : x
  2. Step 2: Convert to fraction form
    12,637,329.21/17,439,599.30 = 7,742,560.77/x
  3. Step 3: Cross multiply
    12,637,329.21x = 17,439,599.30 × 7,742,560.77
  4. Step 4: Simplify right side
    12,637,329.21x = 135,027,157,345,986.66
  5. Step 5: Solve for x
    x = 135,027,157,345,986.66/12,637,329.21
  6. Step 6: Final answer
    x = 10,684,785.93

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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.