Home / 280,401,573.60-386,975,117.52-161,360,655.84

Finding the Fourth Proportional to 280,401,573.60, 386,975,117.52 and 161,360,655.84

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Solution

The fourth proportional to 280,401,573.60, 386,975,117.52 and 161,360,655.84 is: 222,689,758.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,401,573.60 : 386,975,117.52 = 161,360,655.84 : x
  2. Step 2: Convert to fraction form
    280,401,573.60/386,975,117.52 = 161,360,655.84/x
  3. Step 3: Cross multiply
    280,401,573.60x = 386,975,117.52 × 161,360,655.84
  4. Step 4: Simplify right side
    280,401,573.60x = 62,442,558,756,788,272
  5. Step 5: Solve for x
    x = 62,442,558,756,788,272/280,401,573.60
  6. Step 6: Final answer
    x = 222,689,758.67

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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.