Home / 390,094,063.21-585,078,807.33-113,680,621.28

Finding the Fourth Proportional to 390,094,063.21, 585,078,807.33 and 113,680,621.28

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Solution

The fourth proportional to 390,094,063.21, 585,078,807.33 and 113,680,621.28 is: 170,502,780.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,094,063.21 : 585,078,807.33 = 113,680,621.28 : x
  2. Step 2: Convert to fraction form
    390,094,063.21/585,078,807.33 = 113,680,621.28/x
  3. Step 3: Cross multiply
    390,094,063.21x = 585,078,807.33 × 113,680,621.28
  4. Step 4: Simplify right side
    390,094,063.21x = 66,512,122,315,035,824
  5. Step 5: Solve for x
    x = 66,512,122,315,035,824/390,094,063.21
  6. Step 6: Final answer
    x = 170,502,780.20

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.