Home / 19,942,681.80-29,914,022.70-12,762,323.40

Finding the Fourth Proportional to 19,942,681.80, 29,914,022.70 and 12,762,323.40

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Solution

The fourth proportional to 19,942,681.80, 29,914,022.70 and 12,762,323.40 is: 19,143,485.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,942,681.80 : 29,914,022.70 = 12,762,323.40 : x
  2. Step 2: Convert to fraction form
    19,942,681.80/29,914,022.70 = 12,762,323.40/x
  3. Step 3: Cross multiply
    19,942,681.80x = 29,914,022.70 × 12,762,323.40
  4. Step 4: Simplify right side
    19,942,681.80x = 381,772,431,892,341.19
  5. Step 5: Solve for x
    x = 381,772,431,892,341.19/19,942,681.80
  6. Step 6: Final answer
    x = 19,143,485.10

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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.