Home / 289,118,160,460.95-398,986,676,856.32-158,921,229,886.68

Finding the Fourth Proportional to 289,118,160,460.95, 398,986,676,856.32 and 158,921,229,886.68

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Solution

The fourth proportional to 289,118,160,460.95, 398,986,676,856.32 and 158,921,229,886.68 is: 219,313,284,552.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,118,160,460.95 : 398,986,676,856.32 = 158,921,229,886.68 : x
  2. Step 2: Convert to fraction form
    289,118,160,460.95/398,986,676,856.32 = 158,921,229,886.68/x
  3. Step 3: Cross multiply
    289,118,160,460.95x = 398,986,676,856.32 × 158,921,229,886.68
  4. Step 4: Simplify right side
    289,118,160,460.95x = 63,407,453,394,405,737,627,648
  5. Step 5: Solve for x
    x = 63,407,453,394,405,737,627,648/289,118,160,460.95
  6. Step 6: Final answer
    x = 219,313,284,552.29

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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.