Home / 1,308,672,002.60-1,963,008,003.90-388,690,332.20

Finding the Fourth Proportional to 1,308,672,002.60, 1,963,008,003.90 and 388,690,332.20

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Solution

The fourth proportional to 1,308,672,002.60, 1,963,008,003.90 and 388,690,332.20 is: 583,035,498.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,672,002.60 : 1,963,008,003.90 = 388,690,332.20 : x
  2. Step 2: Convert to fraction form
    1,308,672,002.60/1,963,008,003.90 = 388,690,332.20/x
  3. Step 3: Cross multiply
    1,308,672,002.60x = 1,963,008,003.90 × 388,690,332.20
  4. Step 4: Simplify right side
    1,308,672,002.60x = 763,002,233,147,149,952
  5. Step 5: Solve for x
    x = 763,002,233,147,149,952/1,308,672,002.60
  6. Step 6: Final answer
    x = 583,035,498.30

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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.