Home / 145,011,638.04-200,121,340.50-78,928,942.26

Finding the Fourth Proportional to 145,011,638.04, 200,121,340.50 and 78,928,942.26

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Solution

The fourth proportional to 145,011,638.04, 200,121,340.50 and 78,928,942.26 is: 108,924,814.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,011,638.04 : 200,121,340.50 = 78,928,942.26 : x
  2. Step 2: Convert to fraction form
    145,011,638.04/200,121,340.50 = 78,928,942.26/x
  3. Step 3: Cross multiply
    145,011,638.04x = 200,121,340.50 × 78,928,942.26
  4. Step 4: Simplify right side
    145,011,638.04x = 15,795,365,729,318,300
  5. Step 5: Solve for x
    x = 15,795,365,729,318,300/145,011,638.04
  6. Step 6: Final answer
    x = 108,924,814.19

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.