Home / 72,070,858.96-99,456,556.20-39,030,840.32

Finding the Fourth Proportional to 72,070,858.96, 99,456,556.20 and 39,030,840.32

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Solution

The fourth proportional to 72,070,858.96, 99,456,556.20 and 39,030,840.32 is: 53,861,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,858.96 : 99,456,556.20 = 39,030,840.32 : x
  2. Step 2: Convert to fraction form
    72,070,858.96/99,456,556.20 = 39,030,840.32/x
  3. Step 3: Cross multiply
    72,070,858.96x = 99,456,556.20 × 39,030,840.32
  4. Step 4: Simplify right side
    72,070,858.96x = 3,881,872,963,819,306
  5. Step 5: Solve for x
    x = 3,881,872,963,819,306/72,070,858.96
  6. Step 6: Final answer
    x = 53,861,893.97

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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.