Home / 12,905,209.76-19,357,814.64-3,929,762.72

Finding the Fourth Proportional to 12,905,209.76, 19,357,814.64 and 3,929,762.72

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Solution

The fourth proportional to 12,905,209.76, 19,357,814.64 and 3,929,762.72 is: 5,894,644.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905,209.76 : 19,357,814.64 = 3,929,762.72 : x
  2. Step 2: Convert to fraction form
    12,905,209.76/19,357,814.64 = 3,929,762.72/x
  3. Step 3: Cross multiply
    12,905,209.76x = 19,357,814.64 × 3,929,762.72
  4. Step 4: Simplify right side
    12,905,209.76x = 76,071,618,312,942.23
  5. Step 5: Solve for x
    x = 76,071,618,312,942.23/12,905,209.76
  6. Step 6: Final answer
    x = 5,894,644.08

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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.