Home / 278,513,504,863.88-384,346,326,283.15-156,578,782,816.67

Finding the Fourth Proportional to 278,513,504,863.88, 384,346,326,283.15 and 156,578,782,816.67

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Solution

The fourth proportional to 278,513,504,863.88, 384,346,326,283.15 and 156,578,782,816.67 is: 216,077,421,376.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,513,504,863.88 : 384,346,326,283.15 = 156,578,782,816.67 : x
  2. Step 2: Convert to fraction form
    278,513,504,863.88/384,346,326,283.15 = 156,578,782,816.67/x
  3. Step 3: Cross multiply
    278,513,504,863.88x = 384,346,326,283.15 × 156,578,782,816.67
  4. Step 4: Simplify right side
    278,513,504,863.88x = 60,180,479,949,474,340,274,176
  5. Step 5: Solve for x
    x = 60,180,479,949,474,340,274,176/278,513,504,863.88
  6. Step 6: Final answer
    x = 216,077,421,376.34

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Double scale
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1.5x scale

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.