Home / 8,421,145,422-12,638,974,074.24-5,838,030,383.28

Finding the Fourth Proportional to 8,421,145,422, 12,638,974,074.24 and 5,838,030,383.28

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Solution

The fourth proportional to 8,421,145,422, 12,638,974,074.24 and 5,838,030,383.28 is: 8,762,075,817.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,421,145,422 : 12,638,974,074.24 = 5,838,030,383.28 : x
  2. Step 2: Convert to fraction form
    8,421,145,422/12,638,974,074.24 = 5,838,030,383.28/x
  3. Step 3: Cross multiply
    8,421,145,422x = 12,638,974,074.24 × 5,838,030,383.28
  4. Step 4: Simplify right side
    8,421,145,422x = 73,786,714,658,901,327,872
  5. Step 5: Solve for x
    x = 73,786,714,658,901,327,872/8,421,145,422
  6. Step 6: Final answer
    x = 8,762,075,817.64

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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.