Home / 72,128,763.48-99,537,777.90-39,089,010.90

Finding the Fourth Proportional to 72,128,763.48, 99,537,777.90 and 39,089,010.90

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Solution

The fourth proportional to 72,128,763.48, 99,537,777.90 and 39,089,010.90 is: 53,942,880.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,128,763.48 : 99,537,777.90 = 39,089,010.90 : x
  2. Step 2: Convert to fraction form
    72,128,763.48/99,537,777.90 = 39,089,010.90/x
  3. Step 3: Cross multiply
    72,128,763.48x = 99,537,777.90 × 39,089,010.90
  4. Step 4: Simplify right side
    72,128,763.48x = 3,890,833,285,294,879
  5. Step 5: Solve for x
    x = 3,890,833,285,294,879/72,128,763.48
  6. Step 6: Final answer
    x = 53,942,880.73

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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.