Home / 13,179,639.70-19,748,464.35-9,778,417.30

Finding the Fourth Proportional to 13,179,639.70, 19,748,464.35 and 9,778,417.30

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Solution

The fourth proportional to 13,179,639.70, 19,748,464.35 and 9,778,417.30 is: 14,652,048.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179,639.70 : 19,748,464.35 = 9,778,417.30 : x
  2. Step 2: Convert to fraction form
    13,179,639.70/19,748,464.35 = 9,778,417.30/x
  3. Step 3: Cross multiply
    13,179,639.70x = 19,748,464.35 × 9,778,417.30
  4. Step 4: Simplify right side
    13,179,639.70x = 193,108,725,448,473.28
  5. Step 5: Solve for x
    x = 193,108,725,448,473.28/13,179,639.70
  6. Step 6: Final answer
    x = 14,652,048.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.