Home / 42,761,969.68-64,112,492.04-20,030,466.64

Finding the Fourth Proportional to 42,761,969.68, 64,112,492.04 and 20,030,466.64

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Solution

The fourth proportional to 42,761,969.68, 64,112,492.04 and 20,030,466.64 is: 30,031,430.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,761,969.68 : 64,112,492.04 = 20,030,466.64 : x
  2. Step 2: Convert to fraction form
    42,761,969.68/64,112,492.04 = 20,030,466.64/x
  3. Step 3: Cross multiply
    42,761,969.68x = 64,112,492.04 × 20,030,466.64
  4. Step 4: Simplify right side
    42,761,969.68x = 1,284,203,133,014,485.50
  5. Step 5: Solve for x
    x = 1,284,203,133,014,485.50/42,761,969.68
  6. Step 6: Final answer
    x = 30,031,430.79

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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.