Home / 767,668,712.10-1,149,235,586.55-509,175,809.70

Finding the Fourth Proportional to 767,668,712.10, 1,149,235,586.55 and 509,175,809.70

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Solution

The fourth proportional to 767,668,712.10, 1,149,235,586.55 and 509,175,809.70 is: 762,259,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,668,712.10 : 1,149,235,586.55 = 509,175,809.70 : x
  2. Step 2: Convert to fraction form
    767,668,712.10/1,149,235,586.55 = 509,175,809.70/x
  3. Step 3: Cross multiply
    767,668,712.10x = 1,149,235,586.55 × 509,175,809.70
  4. Step 4: Simplify right side
    767,668,712.10x = 585,162,960,317,650,688
  5. Step 5: Solve for x
    x = 585,162,960,317,650,688/767,668,712.10
  6. Step 6: Final answer
    x = 762,259,749.67

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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.