Home / 13,569,350.40-18,725,486.31-7,457,647.68

Finding the Fourth Proportional to 13,569,350.40, 18,725,486.31 and 7,457,647.68

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Solution

The fourth proportional to 13,569,350.40, 18,725,486.31 and 7,457,647.68 is: 10,291,434.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,569,350.40 : 18,725,486.31 = 7,457,647.68 : x
  2. Step 2: Convert to fraction form
    13,569,350.40/18,725,486.31 = 7,457,647.68/x
  3. Step 3: Cross multiply
    13,569,350.40x = 18,725,486.31 × 7,457,647.68
  4. Step 4: Simplify right side
    13,569,350.40x = 139,648,079,536,643.25
  5. Step 5: Solve for x
    x = 139,648,079,536,643.25/13,569,350.40
  6. Step 6: Final answer
    x = 10,291,434.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.