Home / 19,323,920.80-28,985,881.20-12,953,821.60

Finding the Fourth Proportional to 19,323,920.80, 28,985,881.20 and 12,953,821.60

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Solution

The fourth proportional to 19,323,920.80, 28,985,881.20 and 12,953,821.60 is: 19,430,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,323,920.80 : 28,985,881.20 = 12,953,821.60 : x
  2. Step 2: Convert to fraction form
    19,323,920.80/28,985,881.20 = 12,953,821.60/x
  3. Step 3: Cross multiply
    19,323,920.80x = 28,985,881.20 × 12,953,821.60
  4. Step 4: Simplify right side
    19,323,920.80x = 375,477,933,983,593.88
  5. Step 5: Solve for x
    x = 375,477,933,983,593.88/19,323,920.80
  6. Step 6: Final answer
    x = 19,430,732.40

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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.