Home / 318,889,377.55-478,160,973.47-143,807,559.60

Finding the Fourth Proportional to 318,889,377.55, 478,160,973.47 and 143,807,559.60

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Solution

The fourth proportional to 318,889,377.55, 478,160,973.47 and 143,807,559.60 is: 215,633,280.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,889,377.55 : 478,160,973.47 = 143,807,559.60 : x
  2. Step 2: Convert to fraction form
    318,889,377.55/478,160,973.47 = 143,807,559.60/x
  3. Step 3: Cross multiply
    318,889,377.55x = 478,160,973.47 × 143,807,559.60
  4. Step 4: Simplify right side
    318,889,377.55x = 68,763,162,688,393,896
  5. Step 5: Solve for x
    x = 68,763,162,688,393,896/318,889,377.55
  6. Step 6: Final answer
    x = 215,633,280.79

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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.