Home / 318,872,439,671.57-478,309,119,850.32-130,218,335,225.60

Finding the Fourth Proportional to 318,872,439,671.57, 478,309,119,850.32 and 130,218,335,225.60

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Solution

The fourth proportional to 318,872,439,671.57, 478,309,119,850.32 and 130,218,335,225.60 is: 195,327,690,829.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,872,439,671.57 : 478,309,119,850.32 = 130,218,335,225.60 : x
  2. Step 2: Convert to fraction form
    318,872,439,671.57/478,309,119,850.32 = 130,218,335,225.60/x
  3. Step 3: Cross multiply
    318,872,439,671.57x = 478,309,119,850.32 × 130,218,335,225.60
  4. Step 4: Simplify right side
    318,872,439,671.57x = 62,284,617,310,130,661,228,544
  5. Step 5: Solve for x
    x = 62,284,617,310,130,661,228,544/318,872,439,671.57
  6. Step 6: Final answer
    x = 195,327,690,829.23

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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.