Home / 1,120,739,246.47-1,680,936,483.07-373,768,108.57

Finding the Fourth Proportional to 1,120,739,246.47, 1,680,936,483.07 and 373,768,108.57

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Solution

The fourth proportional to 1,120,739,246.47, 1,680,936,483.07 and 373,768,108.57 is: 560,594,671.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,739,246.47 : 1,680,936,483.07 = 373,768,108.57 : x
  2. Step 2: Convert to fraction form
    1,120,739,246.47/1,680,936,483.07 = 373,768,108.57/x
  3. Step 3: Cross multiply
    1,120,739,246.47x = 1,680,936,483.07 × 373,768,108.57
  4. Step 4: Simplify right side
    1,120,739,246.47x = 628,280,449,903,381,632
  5. Step 5: Solve for x
    x = 628,280,449,903,381,632/1,120,739,246.47
  6. Step 6: Final answer
    x = 560,594,671.67

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Double scale
Find fourth proportional to 1,120,739,247.47, 1,680,936,484.57 and 373,768,109.57
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1.5x scale

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.