Home / 12,128,580.72-16,737,452.28-6,696,072.72

Finding the Fourth Proportional to 12,128,580.72, 16,737,452.28 and 6,696,072.72

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Solution

The fourth proportional to 12,128,580.72, 16,737,452.28 and 6,696,072.72 is: 9,240,586.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,580.72 : 16,737,452.28 = 6,696,072.72 : x
  2. Step 2: Convert to fraction form
    12,128,580.72/16,737,452.28 = 6,696,072.72/x
  3. Step 3: Cross multiply
    12,128,580.72x = 16,737,452.28 × 6,696,072.72
  4. Step 4: Simplify right side
    12,128,580.72x = 112,075,197,614,409.80
  5. Step 5: Solve for x
    x = 112,075,197,614,409.80/12,128,580.72
  6. Step 6: Final answer
    x = 9,240,586.36

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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.