Home / 298,413,376,819.20-447,620,065,228.80-121,653,276,364.80

Finding the Fourth Proportional to 298,413,376,819.20, 447,620,065,228.80 and 121,653,276,364.80

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Solution

The fourth proportional to 298,413,376,819.20, 447,620,065,228.80 and 121,653,276,364.80 is: 182,479,914,547.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,413,376,819.20 : 447,620,065,228.80 = 121,653,276,364.80 : x
  2. Step 2: Convert to fraction form
    298,413,376,819.20/447,620,065,228.80 = 121,653,276,364.80/x
  3. Step 3: Cross multiply
    298,413,376,819.20x = 447,620,065,228.80 × 121,653,276,364.80
  4. Step 4: Simplify right side
    298,413,376,819.20x = 54,454,447,501,709,009,747,968
  5. Step 5: Solve for x
    x = 54,454,447,501,709,009,747,968/298,413,376,819.20
  6. Step 6: Final answer
    x = 182,479,914,547.20

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1.5x scale

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.