Home / 970,239,903.40-1,455,359,855.10-280,169,669.80

Finding the Fourth Proportional to 970,239,903.40, 1,455,359,855.10 and 280,169,669.80

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Solution

The fourth proportional to 970,239,903.40, 1,455,359,855.10 and 280,169,669.80 is: 420,254,504.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,239,903.40 : 1,455,359,855.10 = 280,169,669.80 : x
  2. Step 2: Convert to fraction form
    970,239,903.40/1,455,359,855.10 = 280,169,669.80/x
  3. Step 3: Cross multiply
    970,239,903.40x = 1,455,359,855.10 × 280,169,669.80
  4. Step 4: Simplify right side
    970,239,903.40x = 407,747,690,043,542,848
  5. Step 5: Solve for x
    x = 407,747,690,043,542,848/970,239,903.40
  6. Step 6: Final answer
    x = 420,254,504.70

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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.