Home / 221,870,798.55-306,170,498.75-121,397,061.15

Finding the Fourth Proportional to 221,870,798.55, 306,170,498.75 and 121,397,061.15

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Solution

The fourth proportional to 221,870,798.55, 306,170,498.75 and 121,397,061.15 is: 167,521,814.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,870,798.55 : 306,170,498.75 = 121,397,061.15 : x
  2. Step 2: Convert to fraction form
    221,870,798.55/306,170,498.75 = 121,397,061.15/x
  3. Step 3: Cross multiply
    221,870,798.55x = 306,170,498.75 × 121,397,061.15
  4. Step 4: Simplify right side
    221,870,798.55x = 37,168,198,758,472,768
  5. Step 5: Solve for x
    x = 37,168,198,758,472,768/221,870,798.55
  6. Step 6: Final answer
    x = 167,521,814.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.