Home / 279,423,262,406.20-419,134,893,609.30-102,722,956,281.40

Finding the Fourth Proportional to 279,423,262,406.20, 419,134,893,609.30 and 102,722,956,281.40

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Solution

The fourth proportional to 279,423,262,406.20, 419,134,893,609.30 and 102,722,956,281.40 is: 154,084,434,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,423,262,406.20 : 419,134,893,609.30 = 102,722,956,281.40 : x
  2. Step 2: Convert to fraction form
    279,423,262,406.20/419,134,893,609.30 = 102,722,956,281.40/x
  3. Step 3: Cross multiply
    279,423,262,406.20x = 419,134,893,609.30 × 102,722,956,281.40
  4. Step 4: Simplify right side
    279,423,262,406.20x = 43,054,775,352,237,358,055,424
  5. Step 5: Solve for x
    x = 43,054,775,352,237,358,055,424/279,423,262,406.20
  6. Step 6: Final answer
    x = 154,084,434,422.10

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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.