Home / 12,919,880.80-19,400,816.40-9,350,696.80

Finding the Fourth Proportional to 12,919,880.80, 19,400,816.40 and 9,350,696.80

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Solution

The fourth proportional to 12,919,880.80, 19,400,816.40 and 9,350,696.80 is: 14,041,240.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,919,880.80 : 19,400,816.40 = 9,350,696.80 : x
  2. Step 2: Convert to fraction form
    12,919,880.80/19,400,816.40 = 9,350,696.80/x
  3. Step 3: Cross multiply
    12,919,880.80x = 19,400,816.40 × 9,350,696.80
  4. Step 4: Simplify right side
    12,919,880.80x = 181,411,151,828,867.53
  5. Step 5: Solve for x
    x = 181,411,151,828,867.53/12,919,880.80
  6. Step 6: Final answer
    x = 14,041,240.37

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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.