Home / 409,547,379,545.32-613,650,221,895.74-218,116,171,878.52

Finding the Fourth Proportional to 409,547,379,545.32, 613,650,221,895.74 and 218,116,171,878.52

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Solution

The fourth proportional to 409,547,379,545.32, 613,650,221,895.74 and 218,116,171,878.52 is: 326,816,978,833.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,547,379,545.32 : 613,650,221,895.74 = 218,116,171,878.52 : x
  2. Step 2: Convert to fraction form
    409,547,379,545.32/613,650,221,895.74 = 218,116,171,878.52/x
  3. Step 3: Cross multiply
    409,547,379,545.32x = 613,650,221,895.74 × 218,116,171,878.52
  4. Step 4: Simplify right side
    409,547,379,545.32x = 133,847,037,272,303,146,631,168
  5. Step 5: Solve for x
    x = 133,847,037,272,303,146,631,168/409,547,379,545.32
  6. Step 6: Final answer
    x = 326,816,978,833.81

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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.