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Finding the Fourth Proportional to 12,944,658.40, 19,416,987.60 and 12,776,696.80

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Solution

The fourth proportional to 12,944,658.40, 19,416,987.60 and 12,776,696.80 is: 19,165,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,944,658.40 : 19,416,987.60 = 12,776,696.80 : x
  2. Step 2: Convert to fraction form
    12,944,658.40/19,416,987.60 = 12,776,696.80/x
  3. Step 3: Cross multiply
    12,944,658.40x = 19,416,987.60 × 12,776,696.80
  4. Step 4: Simplify right side
    12,944,658.40x = 248,084,963,334,559.72
  5. Step 5: Solve for x
    x = 248,084,963,334,559.72/12,944,658.40
  6. Step 6: Final answer
    x = 19,165,045.20

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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.