Home / 505,302,079.60-757,953,119.40-431,325,492.40

Finding the Fourth Proportional to 505,302,079.60, 757,953,119.40 and 431,325,492.40

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Solution

The fourth proportional to 505,302,079.60, 757,953,119.40 and 431,325,492.40 is: 646,988,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,302,079.60 : 757,953,119.40 = 431,325,492.40 : x
  2. Step 2: Convert to fraction form
    505,302,079.60/757,953,119.40 = 431,325,492.40/x
  3. Step 3: Cross multiply
    505,302,079.60x = 757,953,119.40 × 431,325,492.40
  4. Step 4: Simplify right side
    505,302,079.60x = 326,924,502,441,320,960
  5. Step 5: Solve for x
    x = 326,924,502,441,320,960/505,302,079.60
  6. Step 6: Final answer
    x = 646,988,238.60

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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.