Home / 445,735,828.65-668,603,742.98-139,027,449.45

Finding the Fourth Proportional to 445,735,828.65, 668,603,742.98 and 139,027,449.45

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Solution

The fourth proportional to 445,735,828.65, 668,603,742.98 and 139,027,449.45 is: 208,541,174.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,735,828.65 : 668,603,742.98 = 139,027,449.45 : x
  2. Step 2: Convert to fraction form
    445,735,828.65/668,603,742.98 = 139,027,449.45/x
  3. Step 3: Cross multiply
    445,735,828.65x = 668,603,742.98 × 139,027,449.45
  4. Step 4: Simplify right side
    445,735,828.65x = 92,954,273,078,537,600
  5. Step 5: Solve for x
    x = 92,954,273,078,537,600/445,735,828.65
  6. Step 6: Final answer
    x = 208,541,174.18

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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.