Home / 211,461,994.81-317,257,941.53-100,938,697.93

Finding the Fourth Proportional to 211,461,994.81, 317,257,941.53 and 100,938,697.93

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Solution

The fourth proportional to 211,461,994.81, 317,257,941.53 and 100,938,697.93 is: 151,439,049.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,461,994.81 : 317,257,941.53 = 100,938,697.93 : x
  2. Step 2: Convert to fraction form
    211,461,994.81/317,257,941.53 = 100,938,697.93/x
  3. Step 3: Cross multiply
    211,461,994.81x = 317,257,941.53 × 100,938,697.93
  4. Step 4: Simplify right side
    211,461,994.81x = 32,023,603,525,990,272
  5. Step 5: Solve for x
    x = 32,023,603,525,990,272/211,461,994.81
  6. Step 6: Final answer
    x = 151,439,049.63

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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.