Home / 710,105,316.39-979,860,467.88-392,522,662.08

Finding the Fourth Proportional to 710,105,316.39, 979,860,467.88 and 392,522,662.08

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Solution

The fourth proportional to 710,105,316.39, 979,860,467.88 and 392,522,662.08 is: 541,634,361.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,105,316.39 : 979,860,467.88 = 392,522,662.08 : x
  2. Step 2: Convert to fraction form
    710,105,316.39/979,860,467.88 = 392,522,662.08/x
  3. Step 3: Cross multiply
    710,105,316.39x = 979,860,467.88 × 392,522,662.08
  4. Step 4: Simplify right side
    710,105,316.39x = 384,617,439,319,211,904
  5. Step 5: Solve for x
    x = 384,617,439,319,211,904/710,105,316.39
  6. Step 6: Final answer
    x = 541,634,361.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.