Home / 103,878,419.42-143,352,358.35-56,839,912.22

Finding the Fourth Proportional to 103,878,419.42, 143,352,358.35 and 56,839,912.22

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Solution

The fourth proportional to 103,878,419.42, 143,352,358.35 and 56,839,912.22 is: 78,439,155.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,878,419.42 : 143,352,358.35 = 56,839,912.22 : x
  2. Step 2: Convert to fraction form
    103,878,419.42/143,352,358.35 = 56,839,912.22/x
  3. Step 3: Cross multiply
    103,878,419.42x = 143,352,358.35 × 56,839,912.22
  4. Step 4: Simplify right side
    103,878,419.42x = 8,148,135,465,143,984
  5. Step 5: Solve for x
    x = 8,148,135,465,143,984/103,878,419.42
  6. Step 6: Final answer
    x = 78,439,155.22

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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.