Home / 390,094,061.21-585,078,804.33-113,680,619.28

Finding the Fourth Proportional to 390,094,061.21, 585,078,804.33 and 113,680,619.28

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Solution

The fourth proportional to 390,094,061.21, 585,078,804.33 and 113,680,619.28 is: 170,502,777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,094,061.21 : 585,078,804.33 = 113,680,619.28 : x
  2. Step 2: Convert to fraction form
    390,094,061.21/585,078,804.33 = 113,680,619.28/x
  3. Step 3: Cross multiply
    390,094,061.21x = 585,078,804.33 × 113,680,619.28
  4. Step 4: Simplify right side
    390,094,061.21x = 66,512,120,803,881,512
  5. Step 5: Solve for x
    x = 66,512,120,803,881,512/390,094,061.21
  6. Step 6: Final answer
    x = 170,502,777.20

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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.