Home / 979,808,615.20-1,469,712,922.80-397,821,671.20

Finding the Fourth Proportional to 979,808,615.20, 1,469,712,922.80 and 397,821,671.20

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Solution

The fourth proportional to 979,808,615.20, 1,469,712,922.80 and 397,821,671.20 is: 596,732,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,808,615.20 : 1,469,712,922.80 = 397,821,671.20 : x
  2. Step 2: Convert to fraction form
    979,808,615.20/1,469,712,922.80 = 397,821,671.20/x
  3. Step 3: Cross multiply
    979,808,615.20x = 1,469,712,922.80 × 397,821,671.20
  4. Step 4: Simplify right side
    979,808,615.20x = 584,683,651,132,532,608
  5. Step 5: Solve for x
    x = 584,683,651,132,532,608/979,808,615.20
  6. Step 6: Final answer
    x = 596,732,506.80

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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.