Home / 19,872,002.80-29,808,004.20-7,106,921.20

Finding the Fourth Proportional to 19,872,002.80, 29,808,004.20 and 7,106,921.20

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Solution

The fourth proportional to 19,872,002.80, 29,808,004.20 and 7,106,921.20 is: 10,660,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,872,002.80 : 29,808,004.20 = 7,106,921.20 : x
  2. Step 2: Convert to fraction form
    19,872,002.80/29,808,004.20 = 7,106,921.20/x
  3. Step 3: Cross multiply
    19,872,002.80x = 29,808,004.20 × 7,106,921.20
  4. Step 4: Simplify right side
    19,872,002.80x = 211,843,136,978,669.03
  5. Step 5: Solve for x
    x = 211,843,136,978,669.03/19,872,002.80
  6. Step 6: Final answer
    x = 10,660,381.80

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1.5x scale

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.