Home / 863,477,987.14-1,295,307,700.71-281,257,624.90

Finding the Fourth Proportional to 863,477,987.14, 1,295,307,700.71 and 281,257,624.90

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Solution

The fourth proportional to 863,477,987.14, 1,295,307,700.71 and 281,257,624.90 is: 421,915,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,477,987.14 : 1,295,307,700.71 = 281,257,624.90 : x
  2. Step 2: Convert to fraction form
    863,477,987.14/1,295,307,700.71 = 281,257,624.90/x
  3. Step 3: Cross multiply
    863,477,987.14x = 1,295,307,700.71 × 281,257,624.90
  4. Step 4: Simplify right side
    863,477,987.14x = 364,315,167,416,374,592
  5. Step 5: Solve for x
    x = 364,315,167,416,374,592/863,477,987.14
  6. Step 6: Final answer
    x = 421,915,987.25

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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.