Home / 742,933,200.60-1,114,399,800.90-420,446,928.60

Finding the Fourth Proportional to 742,933,200.60, 1,114,399,800.90 and 420,446,928.60

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Solution

The fourth proportional to 742,933,200.60, 1,114,399,800.90 and 420,446,928.60 is: 630,670,392.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,933,200.60 : 1,114,399,800.90 = 420,446,928.60 : x
  2. Step 2: Convert to fraction form
    742,933,200.60/1,114,399,800.90 = 420,446,928.60/x
  3. Step 3: Cross multiply
    742,933,200.60x = 1,114,399,800.90 × 420,446,928.60
  4. Step 4: Simplify right side
    742,933,200.60x = 468,545,973,520,856,576
  5. Step 5: Solve for x
    x = 468,545,973,520,856,576/742,933,200.60
  6. Step 6: Final answer
    x = 630,670,392.90

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1.5x scale

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.