Home / 355,053,718.26-489,931,690.25-196,262,389.69

Finding the Fourth Proportional to 355,053,718.26, 489,931,690.25 and 196,262,389.69

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Solution

The fourth proportional to 355,053,718.26, 489,931,690.25 and 196,262,389.69 is: 270,818,637.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,053,718.26 : 489,931,690.25 = 196,262,389.69 : x
  2. Step 2: Convert to fraction form
    355,053,718.26/489,931,690.25 = 196,262,389.69/x
  3. Step 3: Cross multiply
    355,053,718.26x = 489,931,690.25 × 196,262,389.69
  4. Step 4: Simplify right side
    355,053,718.26x = 96,155,164,312,591,696
  5. Step 5: Solve for x
    x = 96,155,164,312,591,696/355,053,718.26
  6. Step 6: Final answer
    x = 270,818,637.77

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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.