Home / 12,948,986.20-19,423,479.30-4,428,045.40

Finding the Fourth Proportional to 12,948,986.20, 19,423,479.30 and 4,428,045.40

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Solution

The fourth proportional to 12,948,986.20, 19,423,479.30 and 4,428,045.40 is: 6,642,068.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,986.20 : 19,423,479.30 = 4,428,045.40 : x
  2. Step 2: Convert to fraction form
    12,948,986.20/19,423,479.30 = 4,428,045.40/x
  3. Step 3: Cross multiply
    12,948,986.20x = 19,423,479.30 × 4,428,045.40
  4. Step 4: Simplify right side
    12,948,986.20x = 86,008,048,166,360.23
  5. Step 5: Solve for x
    x = 86,008,048,166,360.23/12,948,986.20
  6. Step 6: Final answer
    x = 6,642,068.10

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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.