Home / 712,124,504.81-1,068,089,789.69-187,449,667.28

Finding the Fourth Proportional to 712,124,504.81, 1,068,089,789.69 and 187,449,667.28

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Solution

The fourth proportional to 712,124,504.81, 1,068,089,789.69 and 187,449,667.28 is: 281,148,976.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,124,504.81 : 1,068,089,789.69 = 187,449,667.28 : x
  2. Step 2: Convert to fraction form
    712,124,504.81/1,068,089,789.69 = 187,449,667.28/x
  3. Step 3: Cross multiply
    712,124,504.81x = 1,068,089,789.69 × 187,449,667.28
  4. Step 4: Simplify right side
    712,124,504.81x = 200,213,075,701,618,432
  5. Step 5: Solve for x
    x = 200,213,075,701,618,432/712,124,504.81
  6. Step 6: Final answer
    x = 281,148,976.55

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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.