Home / 72,114,940.98-99,518,965.01-39,075,181.35

Finding the Fourth Proportional to 72,114,940.98, 99,518,965.01 and 39,075,181.35

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Solution

The fourth proportional to 72,114,940.98, 99,518,965.01 and 39,075,181.35 is: 53,923,937.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114,940.98 : 99,518,965.01 = 39,075,181.35 : x
  2. Step 2: Convert to fraction form
    72,114,940.98/99,518,965.01 = 39,075,181.35/x
  3. Step 3: Cross multiply
    72,114,940.98x = 99,518,965.01 × 39,075,181.35
  4. Step 4: Simplify right side
    72,114,940.98x = 3,888,721,605,334,678.50
  5. Step 5: Solve for x
    x = 3,888,721,605,334,678.50/72,114,940.98
  6. Step 6: Final answer
    x = 53,923,937.99

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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.