Home / 401,620,865.60-602,431,298.40-279,176,859.20

Finding the Fourth Proportional to 401,620,865.60, 602,431,298.40 and 279,176,859.20

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Solution

The fourth proportional to 401,620,865.60, 602,431,298.40 and 279,176,859.20 is: 418,765,288.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,620,865.60 : 602,431,298.40 = 279,176,859.20 : x
  2. Step 2: Convert to fraction form
    401,620,865.60/602,431,298.40 = 279,176,859.20/x
  3. Step 3: Cross multiply
    401,620,865.60x = 602,431,298.40 × 279,176,859.20
  4. Step 4: Simplify right side
    401,620,865.60x = 168,184,877,771,089,984
  5. Step 5: Solve for x
    x = 168,184,877,771,089,984/401,620,865.60
  6. Step 6: Final answer
    x = 418,765,288.80

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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.