Home / 1,293,241,922.20-1,939,862,883.30-638,506,610.20

Finding the Fourth Proportional to 1,293,241,922.20, 1,939,862,883.30 and 638,506,610.20

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Solution

The fourth proportional to 1,293,241,922.20, 1,939,862,883.30 and 638,506,610.20 is: 957,759,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,241,922.20 : 1,939,862,883.30 = 638,506,610.20 : x
  2. Step 2: Convert to fraction form
    1,293,241,922.20/1,939,862,883.30 = 638,506,610.20/x
  3. Step 3: Cross multiply
    1,293,241,922.20x = 1,939,862,883.30 × 638,506,610.20
  4. Step 4: Simplify right side
    1,293,241,922.20x = 1,238,615,273,868,681,216
  5. Step 5: Solve for x
    x = 1,238,615,273,868,681,216/1,293,241,922.20
  6. Step 6: Final answer
    x = 957,759,915.30

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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.