Home / 72,114,958.80-99,518,989.68-39,075,199.20

Finding the Fourth Proportional to 72,114,958.80, 99,518,989.68 and 39,075,199.20

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Solution

The fourth proportional to 72,114,958.80, 99,518,989.68 and 39,075,199.20 is: 53,923,962.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,114,958.80 : 99,518,989.68 = 39,075,199.20 : x
  2. Step 2: Convert to fraction form
    72,114,958.80/99,518,989.68 = 39,075,199.20/x
  3. Step 3: Cross multiply
    72,114,958.80x = 99,518,989.68 × 39,075,199.20
  4. Step 4: Simplify right side
    72,114,958.80x = 3,888,724,345,928,745
  5. Step 5: Solve for x
    x = 3,888,724,345,928,745/72,114,958.80
  6. Step 6: Final answer
    x = 53,923,962.67

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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.