Home / 12,830,439.68-19,243,333.92-5,153,775.20

Finding the Fourth Proportional to 12,830,439.68, 19,243,333.92 and 5,153,775.20

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Solution

The fourth proportional to 12,830,439.68, 19,243,333.92 and 5,153,775.20 is: 7,729,728.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,830,439.68 : 19,243,333.92 = 5,153,775.20 : x
  2. Step 2: Convert to fraction form
    12,830,439.68/19,243,333.92 = 5,153,775.20/x
  3. Step 3: Cross multiply
    12,830,439.68x = 19,243,333.92 × 5,153,775.20
  4. Step 4: Simplify right side
    12,830,439.68x = 99,175,817,122,214.80
  5. Step 5: Solve for x
    x = 99,175,817,122,214.80/12,830,439.68
  6. Step 6: Final answer
    x = 7,729,728.64

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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.