Home / 210,166,484,653.54-315,290,286,561.75-68,637,857,981.86

Finding the Fourth Proportional to 210,166,484,653.54, 315,290,286,561.75 and 68,637,857,981.86

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Solution

The fourth proportional to 210,166,484,653.54, 315,290,286,561.75 and 68,637,857,981.86 is: 102,970,033,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,166,484,653.54 : 315,290,286,561.75 = 68,637,857,981.86 : x
  2. Step 2: Convert to fraction form
    210,166,484,653.54/315,290,286,561.75 = 68,637,857,981.86/x
  3. Step 3: Cross multiply
    210,166,484,653.54x = 315,290,286,561.75 × 68,637,857,981.86
  4. Step 4: Simplify right side
    210,166,484,653.54x = 21,640,849,912,085,337,866,240
  5. Step 5: Solve for x
    x = 21,640,849,912,085,337,866,240/210,166,484,653.54
  6. Step 6: Final answer
    x = 102,970,033,246.55

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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.