Home / 210,166,484,653.29-315,290,286,561.38-68,637,857,981.61

Finding the Fourth Proportional to 210,166,484,653.29, 315,290,286,561.38 and 68,637,857,981.61

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Solution

The fourth proportional to 210,166,484,653.29, 315,290,286,561.38 and 68,637,857,981.61 is: 102,970,033,246.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,166,484,653.29 : 315,290,286,561.38 = 68,637,857,981.61 : x
  2. Step 2: Convert to fraction form
    210,166,484,653.29/315,290,286,561.38 = 68,637,857,981.61/x
  3. Step 3: Cross multiply
    210,166,484,653.29x = 315,290,286,561.38 × 68,637,857,981.61
  4. Step 4: Simplify right side
    210,166,484,653.29x = 21,640,849,911,981,121,994,752
  5. Step 5: Solve for x
    x = 21,640,849,911,981,121,994,752/210,166,484,653.29
  6. Step 6: Final answer
    x = 102,970,033,246.18

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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.