Home / 14,151,728.90-19,529,128.76-7,872,225.57

Finding the Fourth Proportional to 14,151,728.90, 19,529,128.76 and 7,872,225.57

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Solution

The fourth proportional to 14,151,728.90, 19,529,128.76 and 7,872,225.57 is: 10,863,528.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151,728.90 : 19,529,128.76 = 7,872,225.57 : x
  2. Step 2: Convert to fraction form
    14,151,728.90/19,529,128.76 = 7,872,225.57/x
  3. Step 3: Cross multiply
    14,151,728.90x = 19,529,128.76 × 7,872,225.57
  4. Step 4: Simplify right side
    14,151,728.90x = 153,737,706,744,933.25
  5. Step 5: Solve for x
    x = 153,737,706,744,933.25/14,151,728.90
  6. Step 6: Final answer
    x = 10,863,528.25

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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.