Home / 429,698,283.54-644,673,199.47-138,559,550.94

Finding the Fourth Proportional to 429,698,283.54, 644,673,199.47 and 138,559,550.94

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Solution

The fourth proportional to 429,698,283.54, 644,673,199.47 and 138,559,550.94 is: 207,879,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,698,283.54 : 644,673,199.47 = 138,559,550.94 : x
  2. Step 2: Convert to fraction form
    429,698,283.54/644,673,199.47 = 138,559,550.94/x
  3. Step 3: Cross multiply
    429,698,283.54x = 644,673,199.47 × 138,559,550.94
  4. Step 4: Simplify right side
    429,698,283.54x = 89,325,629,021,616,256
  5. Step 5: Solve for x
    x = 89,325,629,021,616,256/429,698,283.54
  6. Step 6: Final answer
    x = 207,879,883.27

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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.