Home / 19,331,254.30-28,996,881.45-12,961,155.10

Finding the Fourth Proportional to 19,331,254.30, 28,996,881.45 and 12,961,155.10

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Solution

The fourth proportional to 19,331,254.30, 28,996,881.45 and 12,961,155.10 is: 19,441,732.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331,254.30 : 28,996,881.45 = 12,961,155.10 : x
  2. Step 2: Convert to fraction form
    19,331,254.30/28,996,881.45 = 12,961,155.10/x
  3. Step 3: Cross multiply
    19,331,254.30x = 28,996,881.45 × 12,961,155.10
  4. Step 4: Simplify right side
    19,331,254.30x = 375,833,077,889,762.88
  5. Step 5: Solve for x
    x = 375,833,077,889,762.88/19,331,254.30
  6. Step 6: Final answer
    x = 19,441,732.65

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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.