Home / 12,243,374.40-18,349,315.20-7,445,971.20

Finding the Fourth Proportional to 12,243,374.40, 18,349,315.20 and 7,445,971.20

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Solution

The fourth proportional to 12,243,374.40, 18,349,315.20 and 7,445,971.20 is: 11,159,380.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,243,374.40 : 18,349,315.20 = 7,445,971.20 : x
  2. Step 2: Convert to fraction form
    12,243,374.40/18,349,315.20 = 7,445,971.20/x
  3. Step 3: Cross multiply
    12,243,374.40x = 18,349,315.20 × 7,445,971.20
  4. Step 4: Simplify right side
    12,243,374.40x = 136,628,472,518,922.23
  5. Step 5: Solve for x
    x = 136,628,472,518,922.23/12,243,374.40
  6. Step 6: Final answer
    x = 11,159,380.42

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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.