Home / 1,383,017,968.32-1,908,570,546.55-747,938,460.11

Finding the Fourth Proportional to 1,383,017,968.32, 1,908,570,546.55 and 747,938,460.11

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Solution

The fourth proportional to 1,383,017,968.32, 1,908,570,546.55 and 747,938,460.11 is: 1,032,158,184.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,017,968.32 : 1,908,570,546.55 = 747,938,460.11 : x
  2. Step 2: Convert to fraction form
    1,383,017,968.32/1,908,570,546.55 = 747,938,460.11/x
  3. Step 3: Cross multiply
    1,383,017,968.32x = 1,908,570,546.55 × 747,938,460.11
  4. Step 4: Simplify right side
    1,383,017,968.32x = 1,427,493,315,598,939,648
  5. Step 5: Solve for x
    x = 1,427,493,315,598,939,648/1,383,017,968.32
  6. Step 6: Final answer
    x = 1,032,158,184.71

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Double scale
Find fourth proportional to 1,383,017,969.32, 1,908,570,547.93 and 747,938,461.11
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.