Home / 12,319,896.16-17,001,569.80-6,812,986.40

Finding the Fourth Proportional to 12,319,896.16, 17,001,569.80 and 6,812,986.40

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Solution

The fourth proportional to 12,319,896.16, 17,001,569.80 and 6,812,986.40 is: 9,401,983.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,319,896.16 : 17,001,569.80 = 6,812,986.40 : x
  2. Step 2: Convert to fraction form
    12,319,896.16/17,001,569.80 = 6,812,986.40/x
  3. Step 3: Cross multiply
    12,319,896.16x = 17,001,569.80 × 6,812,986.40
  4. Step 4: Simplify right side
    12,319,896.16x = 115,831,463,826,050.73
  5. Step 5: Solve for x
    x = 115,831,463,826,050.73/12,319,896.16
  6. Step 6: Final answer
    x = 9,401,983.78

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1.5x scale

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.