Home / 711,176,271.70-1,066,764,407.55-419,744,233.30

Finding the Fourth Proportional to 711,176,271.70, 1,066,764,407.55 and 419,744,233.30

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Solution

The fourth proportional to 711,176,271.70, 1,066,764,407.55 and 419,744,233.30 is: 629,616,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,176,271.70 : 1,066,764,407.55 = 419,744,233.30 : x
  2. Step 2: Convert to fraction form
    711,176,271.70/1,066,764,407.55 = 419,744,233.30/x
  3. Step 3: Cross multiply
    711,176,271.70x = 1,066,764,407.55 × 419,744,233.30
  4. Step 4: Simplify right side
    711,176,271.70x = 447,768,208,358,803,456
  5. Step 5: Solve for x
    x = 447,768,208,358,803,456/711,176,271.70
  6. Step 6: Final answer
    x = 629,616,349.95

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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.