Home / 664,009,417.20-996,014,125.80-654,939,490.80

Finding the Fourth Proportional to 664,009,417.20, 996,014,125.80 and 654,939,490.80

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Solution

The fourth proportional to 664,009,417.20, 996,014,125.80 and 654,939,490.80 is: 982,409,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,009,417.20 : 996,014,125.80 = 654,939,490.80 : x
  2. Step 2: Convert to fraction form
    664,009,417.20/996,014,125.80 = 654,939,490.80/x
  3. Step 3: Cross multiply
    664,009,417.20x = 996,014,125.80 × 654,939,490.80
  4. Step 4: Simplify right side
    664,009,417.20x = 652,328,984,381,059,072
  5. Step 5: Solve for x
    x = 652,328,984,381,059,072/664,009,417.20
  6. Step 6: Final answer
    x = 982,409,236.20

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Double scale
Find fourth proportional to 664,009,418.20, 996,014,127.30 and 654,939,491.80
Similar ratio
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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.