Home / 312,325,522.56-431,009,261.28-173,105,272.32

Finding the Fourth Proportional to 312,325,522.56, 431,009,261.28 and 173,105,272.32

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Solution

The fourth proportional to 312,325,522.56, 431,009,261.28 and 173,105,272.32 is: 238,885,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,325,522.56 : 431,009,261.28 = 173,105,272.32 : x
  2. Step 2: Convert to fraction form
    312,325,522.56/431,009,261.28 = 173,105,272.32/x
  3. Step 3: Cross multiply
    312,325,522.56x = 431,009,261.28 × 173,105,272.32
  4. Step 4: Simplify right side
    312,325,522.56x = 74,609,975,546,316,416
  5. Step 5: Solve for x
    x = 74,609,975,546,316,416/312,325,522.56
  6. Step 6: Final answer
    x = 238,885,298.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.