Home / 66,309,047.20-99,477,022.80-20,860,271.20

Finding the Fourth Proportional to 66,309,047.20, 99,477,022.80 and 20,860,271.20

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Solution

The fourth proportional to 66,309,047.20, 99,477,022.80 and 20,860,271.20 is: 31,294,638.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,309,047.20 : 99,477,022.80 = 20,860,271.20 : x
  2. Step 2: Convert to fraction form
    66,309,047.20/99,477,022.80 = 20,860,271.20/x
  3. Step 3: Cross multiply
    66,309,047.20x = 99,477,022.80 × 20,860,271.20
  4. Step 4: Simplify right side
    66,309,047.20x = 2,075,117,673,776,583.25
  5. Step 5: Solve for x
    x = 2,075,117,673,776,583.25/66,309,047.20
  6. Step 6: Final answer
    x = 31,294,638.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.