Home / 838,152,611.67-1,257,423,447.46-285,459,828.39

Finding the Fourth Proportional to 838,152,611.67, 1,257,423,447.46 and 285,459,828.39

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Solution

The fourth proportional to 838,152,611.67, 1,257,423,447.46 and 285,459,828.39 is: 428,255,996.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,152,611.67 : 1,257,423,447.46 = 285,459,828.39 : x
  2. Step 2: Convert to fraction form
    838,152,611.67/1,257,423,447.46 = 285,459,828.39/x
  3. Step 3: Cross multiply
    838,152,611.67x = 1,257,423,447.46 × 285,459,828.39
  4. Step 4: Simplify right side
    838,152,611.67x = 358,943,881,525,493,760
  5. Step 5: Solve for x
    x = 358,943,881,525,493,760/838,152,611.67
  6. Step 6: Final answer
    x = 428,255,996.02

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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.