Home / 659,953,984.32-989,924,672.48-401,240,632.64

Finding the Fourth Proportional to 659,953,984.32, 989,924,672.48 and 401,240,632.64

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Solution

The fourth proportional to 659,953,984.32, 989,924,672.48 and 401,240,632.64 is: 601,857,116.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,953,984.32 : 989,924,672.48 = 401,240,632.64 : x
  2. Step 2: Convert to fraction form
    659,953,984.32/989,924,672.48 = 401,240,632.64/x
  3. Step 3: Cross multiply
    659,953,984.32x = 989,924,672.48 × 401,240,632.64
  4. Step 4: Simplify right side
    659,953,984.32x = 397,198,001,851,819,968
  5. Step 5: Solve for x
    x = 397,198,001,851,819,968/659,953,984.32
  6. Step 6: Final answer
    x = 601,857,116.24

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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.