Home / 401,620,867.60-602,431,301.40-279,176,861.20

Finding the Fourth Proportional to 401,620,867.60, 602,431,301.40 and 279,176,861.20

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Solution

The fourth proportional to 401,620,867.60, 602,431,301.40 and 279,176,861.20 is: 418,765,291.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,620,867.60 : 602,431,301.40 = 279,176,861.20 : x
  2. Step 2: Convert to fraction form
    401,620,867.60/602,431,301.40 = 279,176,861.20/x
  3. Step 3: Cross multiply
    401,620,867.60x = 602,431,301.40 × 279,176,861.20
  4. Step 4: Simplify right side
    401,620,867.60x = 168,184,879,813,483,136
  5. Step 5: Solve for x
    x = 168,184,879,813,483,136/401,620,867.60
  6. Step 6: Final answer
    x = 418,765,291.80

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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.