Home / 212,365,152,081.70-318,547,728,122.55-86,527,150,879.30

Finding the Fourth Proportional to 212,365,152,081.70, 318,547,728,122.55 and 86,527,150,879.30

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Solution

The fourth proportional to 212,365,152,081.70, 318,547,728,122.55 and 86,527,150,879.30 is: 129,790,726,318.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,365,152,081.70 : 318,547,728,122.55 = 86,527,150,879.30 : x
  2. Step 2: Convert to fraction form
    212,365,152,081.70/318,547,728,122.55 = 86,527,150,879.30/x
  3. Step 3: Cross multiply
    212,365,152,081.70x = 318,547,728,122.55 × 86,527,150,879.30
  4. Step 4: Simplify right side
    212,365,152,081.70x = 27,563,027,333,518,119,141,376
  5. Step 5: Solve for x
    x = 27,563,027,333,518,119,141,376/212,365,152,081.70
  6. Step 6: Final answer
    x = 129,790,726,318.95

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Double scale
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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.