Home / 72,051,438.80-99,427,999.56-39,455,829.20

Finding the Fourth Proportional to 72,051,438.80, 99,427,999.56 and 39,455,829.20

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Solution

The fourth proportional to 72,051,438.80, 99,427,999.56 and 39,455,829.20 is: 54,447,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,051,438.80 : 99,427,999.56 = 39,455,829.20 : x
  2. Step 2: Convert to fraction form
    72,051,438.80/99,427,999.56 = 39,455,829.20/x
  3. Step 3: Cross multiply
    72,051,438.80x = 99,427,999.56 × 39,455,829.20
  4. Step 4: Simplify right side
    72,051,438.80x = 3,923,014,168,337,035.50
  5. Step 5: Solve for x
    x = 3,923,014,168,337,035.50/72,051,438.80
  6. Step 6: Final answer
    x = 54,447,409.15

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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.