Home / 72,114,988.14-99,519,030-39,075,228.54

Finding the Fourth Proportional to 72,114,988.14, 99,519,030 and 39,075,228.54

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Solution

The fourth proportional to 72,114,988.14, 99,519,030 and 39,075,228.54 is: 53,924,003.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114,988.14 : 99,519,030 = 39,075,228.54 : x
  2. Step 2: Convert to fraction form
    72,114,988.14/99,519,030 = 39,075,228.54/x
  3. Step 3: Cross multiply
    72,114,988.14x = 99,519,030 × 39,075,228.54
  4. Step 4: Simplify right side
    72,114,988.14x = 3,888,728,841,329,116
  5. Step 5: Solve for x
    x = 3,888,728,841,329,116/72,114,988.14
  6. Step 6: Final answer
    x = 53,924,003.06

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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.