Home / 69,803,432.80-104,716,500-20,624,276.32

Finding the Fourth Proportional to 69,803,432.80, 104,716,500 and 20,624,276.32

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Solution

The fourth proportional to 69,803,432.80, 104,716,500 and 20,624,276.32 is: 30,939,768.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,803,432.80 : 104,716,500 = 20,624,276.32 : x
  2. Step 2: Convert to fraction form
    69,803,432.80/104,716,500 = 20,624,276.32/x
  3. Step 3: Cross multiply
    69,803,432.80x = 104,716,500 × 20,624,276.32
  4. Step 4: Simplify right side
    69,803,432.80x = 2,159,702,031,263,280
  5. Step 5: Solve for x
    x = 2,159,702,031,263,280/69,803,432.80
  6. Step 6: Final answer
    x = 30,939,768.21

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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.