Home / 72,114,985.32-99,519,026.27-39,075,225.79

Finding the Fourth Proportional to 72,114,985.32, 99,519,026.27 and 39,075,225.79

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Solution

The fourth proportional to 72,114,985.32, 99,519,026.27 and 39,075,225.79 is: 53,923,999.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114,985.32 : 99,519,026.27 = 39,075,225.79 : x
  2. Step 2: Convert to fraction form
    72,114,985.32/99,519,026.27 = 39,075,225.79/x
  3. Step 3: Cross multiply
    72,114,985.32x = 99,519,026.27 × 39,075,225.79
  4. Step 4: Simplify right side
    72,114,985.32x = 3,888,728,421,901,191.50
  5. Step 5: Solve for x
    x = 3,888,728,421,901,191.50/72,114,985.32
  6. Step 6: Final answer
    x = 53,923,999.36

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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.