Home / 128,603,809.60-192,867,237.60-42,326,290.24

Finding the Fourth Proportional to 128,603,809.60, 192,867,237.60 and 42,326,290.24

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Solution

The fourth proportional to 128,603,809.60, 192,867,237.60 and 42,326,290.24 is: 63,476,771.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,603,809.60 : 192,867,237.60 = 42,326,290.24 : x
  2. Step 2: Convert to fraction form
    128,603,809.60/192,867,237.60 = 42,326,290.24/x
  3. Step 3: Cross multiply
    128,603,809.60x = 192,867,237.60 × 42,326,290.24
  4. Step 4: Simplify right side
    128,603,809.60x = 8,163,354,676,444,641
  5. Step 5: Solve for x
    x = 8,163,354,676,444,641/128,603,809.60
  6. Step 6: Final answer
    x = 63,476,771.81

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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.