Home / 708,590,099.20-1,062,885,148.80-320,425,592.80

Finding the Fourth Proportional to 708,590,099.20, 1,062,885,148.80 and 320,425,592.80

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Solution

The fourth proportional to 708,590,099.20, 1,062,885,148.80 and 320,425,592.80 is: 480,638,389.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,590,099.20 : 1,062,885,148.80 = 320,425,592.80 : x
  2. Step 2: Convert to fraction form
    708,590,099.20/1,062,885,148.80 = 320,425,592.80/x
  3. Step 3: Cross multiply
    708,590,099.20x = 1,062,885,148.80 × 320,425,592.80
  4. Step 4: Simplify right side
    708,590,099.20x = 340,575,603,882,556,224
  5. Step 5: Solve for x
    x = 340,575,603,882,556,224/708,590,099.20
  6. Step 6: Final answer
    x = 480,638,389.20

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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.