Home / 403,603,156.61-556,972,334.80-217,964,154.41

Finding the Fourth Proportional to 403,603,156.61, 556,972,334.80 and 217,964,154.41

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Solution

The fourth proportional to 403,603,156.61, 556,972,334.80 and 217,964,154.41 is: 300,790,521.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,603,156.61 : 556,972,334.80 = 217,964,154.41 : x
  2. Step 2: Convert to fraction form
    403,603,156.61/556,972,334.80 = 217,964,154.41/x
  3. Step 3: Cross multiply
    403,603,156.61x = 556,972,334.80 × 217,964,154.41
  4. Step 4: Simplify right side
    403,603,156.61x = 121,400,003,984,445,408
  5. Step 5: Solve for x
    x = 121,400,003,984,445,408/403,603,156.61
  6. Step 6: Final answer
    x = 300,790,521.57

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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.