Home / 13,186,128.20-19,779,192.30-12,949,932.20

Finding the Fourth Proportional to 13,186,128.20, 19,779,192.30 and 12,949,932.20

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Solution

The fourth proportional to 13,186,128.20, 19,779,192.30 and 12,949,932.20 is: 19,424,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,186,128.20 : 19,779,192.30 = 12,949,932.20 : x
  2. Step 2: Convert to fraction form
    13,186,128.20/19,779,192.30 = 12,949,932.20/x
  3. Step 3: Cross multiply
    13,186,128.20x = 19,779,192.30 × 12,949,932.20
  4. Step 4: Simplify right side
    13,186,128.20x = 256,139,199,255,762.06
  5. Step 5: Solve for x
    x = 256,139,199,255,762.06/13,186,128.20
  6. Step 6: Final answer
    x = 19,424,898.30

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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.