Home / 19,008,301.20-28,512,451.80-12,284,307.60

Finding the Fourth Proportional to 19,008,301.20, 28,512,451.80 and 12,284,307.60

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Solution

The fourth proportional to 19,008,301.20, 28,512,451.80 and 12,284,307.60 is: 18,426,461.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,301.20 : 28,512,451.80 = 12,284,307.60 : x
  2. Step 2: Convert to fraction form
    19,008,301.20/28,512,451.80 = 12,284,307.60/x
  3. Step 3: Cross multiply
    19,008,301.20x = 28,512,451.80 × 12,284,307.60
  4. Step 4: Simplify right side
    19,008,301.20x = 350,255,728,341,373.69
  5. Step 5: Solve for x
    x = 350,255,728,341,373.69/19,008,301.20
  6. Step 6: Final answer
    x = 18,426,461.40

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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.