Home / 18,944,048.40-28,416,072.60-12,897,430.80

Finding the Fourth Proportional to 18,944,048.40, 28,416,072.60 and 12,897,430.80

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Solution

The fourth proportional to 18,944,048.40, 28,416,072.60 and 12,897,430.80 is: 19,346,146.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944,048.40 : 28,416,072.60 = 12,897,430.80 : x
  2. Step 2: Convert to fraction form
    18,944,048.40/28,416,072.60 = 12,897,430.80/x
  3. Step 3: Cross multiply
    18,944,048.40x = 28,416,072.60 × 12,897,430.80
  4. Step 4: Simplify right side
    18,944,048.40x = 366,494,329,966,276.12
  5. Step 5: Solve for x
    x = 366,494,329,966,276.12/18,944,048.40
  6. Step 6: Final answer
    x = 19,346,146.20

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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.