Home / 692,089,812.80-1,037,294,911.20-400,396,500.80

Finding the Fourth Proportional to 692,089,812.80, 1,037,294,911.20 and 400,396,500.80

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Solution

The fourth proportional to 692,089,812.80, 1,037,294,911.20 and 400,396,500.80 is: 600,108,894.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,089,812.80 : 1,037,294,911.20 = 400,396,500.80 : x
  2. Step 2: Convert to fraction form
    692,089,812.80/1,037,294,911.20 = 400,396,500.80/x
  3. Step 3: Cross multiply
    692,089,812.80x = 1,037,294,911.20 × 400,396,500.80
  4. Step 4: Simplify right side
    692,089,812.80x = 415,329,252,742,126,784
  5. Step 5: Solve for x
    x = 415,329,252,742,126,784/692,089,812.80
  6. Step 6: Final answer
    x = 600,108,894.92

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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.