Home / 1,268,779,376,915.40-1,902,610,584,743.30-672,399,518,073.76

Finding the Fourth Proportional to 1,268,779,376,915.40, 1,902,610,584,743.30 and 672,399,518,073.76

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Solution

The fourth proportional to 1,268,779,376,915.40, 1,902,610,584,743.30 and 672,399,518,073.76 is: 1,008,303,305,948.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,779,376,915.40 : 1,902,610,584,743.30 = 672,399,518,073.76 : x
  2. Step 2: Convert to fraction form
    1,268,779,376,915.40/1,902,610,584,743.30 = 672,399,518,073.76/x
  3. Step 3: Cross multiply
    1,268,779,376,915.40x = 1,902,610,584,743.30 × 672,399,518,073.76
  4. Step 4: Simplify right side
    1,268,779,376,915.40x = 1,279,314,440,263,429,550,768,128
  5. Step 5: Solve for x
    x = 1,279,314,440,263,429,550,768,128/1,268,779,376,915.40
  6. Step 6: Final answer
    x = 1,008,303,305,948.78

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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.