Home / 1,638,440,277.12-2,457,662,780.88-669,091,893.12

Finding the Fourth Proportional to 1,638,440,277.12, 2,457,662,780.88 and 669,091,893.12

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Solution

The fourth proportional to 1,638,440,277.12, 2,457,662,780.88 and 669,091,893.12 is: 1,003,638,805.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,440,277.12 : 2,457,662,780.88 = 669,091,893.12 : x
  2. Step 2: Convert to fraction form
    1,638,440,277.12/2,457,662,780.88 = 669,091,893.12/x
  3. Step 3: Cross multiply
    1,638,440,277.12x = 2,457,662,780.88 × 669,091,893.12
  4. Step 4: Simplify right side
    1,638,440,277.12x = 1,644,402,242,709,563,136
  5. Step 5: Solve for x
    x = 1,644,402,242,709,563,136/1,638,440,277.12
  6. Step 6: Final answer
    x = 1,003,638,805.56

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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.