Home / 12,948,984.20-19,423,476.30-4,428,043.40

Finding the Fourth Proportional to 12,948,984.20, 19,423,476.30 and 4,428,043.40

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Solution

The fourth proportional to 12,948,984.20, 19,423,476.30 and 4,428,043.40 is: 6,642,065.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,984.20 : 19,423,476.30 = 4,428,043.40 : x
  2. Step 2: Convert to fraction form
    12,948,984.20/19,423,476.30 = 4,428,043.40/x
  3. Step 3: Cross multiply
    12,948,984.20x = 19,423,476.30 × 4,428,043.40
  4. Step 4: Simplify right side
    12,948,984.20x = 86,007,996,035,271.44
  5. Step 5: Solve for x
    x = 86,007,996,035,271.44/12,948,984.20
  6. Step 6: Final answer
    x = 6,642,065.10

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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.