Home / 489,932,712.30-734,899,068.45-217,303,479.30

Finding the Fourth Proportional to 489,932,712.30, 734,899,068.45 and 217,303,479.30

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Solution

The fourth proportional to 489,932,712.30, 734,899,068.45 and 217,303,479.30 is: 325,955,218.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,932,712.30 : 734,899,068.45 = 217,303,479.30 : x
  2. Step 2: Convert to fraction form
    489,932,712.30/734,899,068.45 = 217,303,479.30/x
  3. Step 3: Cross multiply
    489,932,712.30x = 734,899,068.45 × 217,303,479.30
  4. Step 4: Simplify right side
    489,932,712.30x = 159,696,124,508,513,888
  5. Step 5: Solve for x
    x = 159,696,124,508,513,888/489,932,712.30
  6. Step 6: Final answer
    x = 325,955,218.95

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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.