Home / 289,762,655.40-399,836,170.48-195,881,069.98

Finding the Fourth Proportional to 289,762,655.40, 399,836,170.48 and 195,881,069.98

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Solution

The fourth proportional to 289,762,655.40, 399,836,170.48 and 195,881,069.98 is: 270,291,341.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,762,655.40 : 399,836,170.48 = 195,881,069.98 : x
  2. Step 2: Convert to fraction form
    289,762,655.40/399,836,170.48 = 195,881,069.98/x
  3. Step 3: Cross multiply
    289,762,655.40x = 399,836,170.48 × 195,881,069.98
  4. Step 4: Simplify right side
    289,762,655.40x = 78,320,336,890,328,096
  5. Step 5: Solve for x
    x = 78,320,336,890,328,096/289,762,655.40
  6. Step 6: Final answer
    x = 270,291,341.66

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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.