Home / 12,949,089.20-19,423,633.80-4,428,148.40

Finding the Fourth Proportional to 12,949,089.20, 19,423,633.80 and 4,428,148.40

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Solution

The fourth proportional to 12,949,089.20, 19,423,633.80 and 4,428,148.40 is: 6,642,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,089.20 : 19,423,633.80 = 4,428,148.40 : x
  2. Step 2: Convert to fraction form
    12,949,089.20/19,423,633.80 = 4,428,148.40/x
  3. Step 3: Cross multiply
    12,949,089.20x = 19,423,633.80 × 4,428,148.40
  4. Step 4: Simplify right side
    12,949,089.20x = 86,010,732,933,655.94
  5. Step 5: Solve for x
    x = 86,010,732,933,655.94/12,949,089.20
  6. Step 6: Final answer
    x = 6,642,222.60

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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.