Home / 1,383,191,779.64-1,908,798,948.88-748,112,980.64

Finding the Fourth Proportional to 1,383,191,779.64, 1,908,798,948.88 and 748,112,980.64

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Solution

The fourth proportional to 1,383,191,779.64, 1,908,798,948.88 and 748,112,980.64 is: 1,032,392,826.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,191,779.64 : 1,908,798,948.88 = 748,112,980.64 : x
  2. Step 2: Convert to fraction form
    1,383,191,779.64/1,908,798,948.88 = 748,112,980.64/x
  3. Step 3: Cross multiply
    1,383,191,779.64x = 1,908,798,948.88 × 748,112,980.64
  4. Step 4: Simplify right side
    1,383,191,779.64x = 1,427,997,271,089,115,904
  5. Step 5: Solve for x
    x = 1,427,997,271,089,115,904/1,383,191,779.64
  6. Step 6: Final answer
    x = 1,032,392,826.58

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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.