Home / 1,281,438,400,973.60-1,768,386,744,517.20-695,488,255,638.20

Finding the Fourth Proportional to 1,281,438,400,973.60, 1,768,386,744,517.20 and 695,488,255,638.20

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Solution

The fourth proportional to 1,281,438,400,973.60, 1,768,386,744,517.20 and 695,488,255,638.20 is: 959,774,743,213.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,438,400,973.60 : 1,768,386,744,517.20 = 695,488,255,638.20 : x
  2. Step 2: Convert to fraction form
    1,281,438,400,973.60/1,768,386,744,517.20 = 695,488,255,638.20/x
  3. Step 3: Cross multiply
    1,281,438,400,973.60x = 1,768,386,744,517.20 × 695,488,255,638.20
  4. Step 4: Simplify right side
    1,281,438,400,973.60x = 1,229,892,212,237,982,612,062,208
  5. Step 5: Solve for x
    x = 1,229,892,212,237,982,612,062,208/1,281,438,400,973.60
  6. Step 6: Final answer
    x = 959,774,743,213.21

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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.