Home / 318,872,439,684.08-478,309,119,869.08-130,218,335,238.15

Finding the Fourth Proportional to 318,872,439,684.08, 478,309,119,869.08 and 130,218,335,238.15

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Solution

The fourth proportional to 318,872,439,684.08, 478,309,119,869.08 and 130,218,335,238.15 is: 195,327,690,848.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,872,439,684.08 : 478,309,119,869.08 = 130,218,335,238.15 : x
  2. Step 2: Convert to fraction form
    318,872,439,684.08/478,309,119,869.08 = 130,218,335,238.15/x
  3. Step 3: Cross multiply
    318,872,439,684.08x = 478,309,119,869.08 × 130,218,335,238.15
  4. Step 4: Simplify right side
    318,872,439,684.08x = 62,284,617,318,576,328,540,160
  5. Step 5: Solve for x
    x = 62,284,617,318,576,328,540,160/318,872,439,684.08
  6. Step 6: Final answer
    x = 195,327,690,848.05

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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.