Home / 1,638,001,525.40-2,457,002,288.10-655,579,692.80

Finding the Fourth Proportional to 1,638,001,525.40, 2,457,002,288.10 and 655,579,692.80

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Solution

The fourth proportional to 1,638,001,525.40, 2,457,002,288.10 and 655,579,692.80 is: 983,369,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,001,525.40 : 2,457,002,288.10 = 655,579,692.80 : x
  2. Step 2: Convert to fraction form
    1,638,001,525.40/2,457,002,288.10 = 655,579,692.80/x
  3. Step 3: Cross multiply
    1,638,001,525.40x = 2,457,002,288.10 × 655,579,692.80
  4. Step 4: Simplify right side
    1,638,001,525.40x = 1,610,760,805,241,495,040
  5. Step 5: Solve for x
    x = 1,610,760,805,241,495,040/1,638,001,525.40
  6. Step 6: Final answer
    x = 983,369,539.20

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Double scale
Find fourth proportional to 1,638,001,526.40, 2,457,002,289.60 and 655,579,693.80
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.