Home / 740,961,011.40-1,109,959,543.98-445,693,139.12

Finding the Fourth Proportional to 740,961,011.40, 1,109,959,543.98 and 445,693,139.12

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Solution

The fourth proportional to 740,961,011.40, 1,109,959,543.98 and 445,693,139.12 is: 667,648,291.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,961,011.40 : 1,109,959,543.98 = 445,693,139.12 : x
  2. Step 2: Convert to fraction form
    740,961,011.40/1,109,959,543.98 = 445,693,139.12/x
  3. Step 3: Cross multiply
    740,961,011.40x = 1,109,959,543.98 × 445,693,139.12
  4. Step 4: Simplify right side
    740,961,011.40x = 494,701,353,452,649,920
  5. Step 5: Solve for x
    x = 494,701,353,452,649,920/740,961,011.40
  6. Step 6: Final answer
    x = 667,648,291.67

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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.