Home / 1,257,984,014.10-1,886,976,021.15-890,651,994.90

Finding the Fourth Proportional to 1,257,984,014.10, 1,886,976,021.15 and 890,651,994.90

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Solution

The fourth proportional to 1,257,984,014.10, 1,886,976,021.15 and 890,651,994.90 is: 1,335,977,992.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,984,014.10 : 1,886,976,021.15 = 890,651,994.90 : x
  2. Step 2: Convert to fraction form
    1,257,984,014.10/1,886,976,021.15 = 890,651,994.90/x
  3. Step 3: Cross multiply
    1,257,984,014.10x = 1,886,976,021.15 × 890,651,994.90
  4. Step 4: Simplify right side
    1,257,984,014.10x = 1,680,638,957,565,712,128
  5. Step 5: Solve for x
    x = 1,680,638,957,565,712,128/1,257,984,014.10
  6. Step 6: Final answer
    x = 1,335,977,992.35

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Double scale
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Similar ratio
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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.