Home / 1,257,984,001.10-1,886,976,001.65-890,651,981.90

Finding the Fourth Proportional to 1,257,984,001.10, 1,886,976,001.65 and 890,651,981.90

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Solution

The fourth proportional to 1,257,984,001.10, 1,886,976,001.65 and 890,651,981.90 is: 1,335,977,972.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,984,001.10 : 1,886,976,001.65 = 890,651,981.90 : x
  2. Step 2: Convert to fraction form
    1,257,984,001.10/1,886,976,001.65 = 890,651,981.90/x
  3. Step 3: Cross multiply
    1,257,984,001.10x = 1,886,976,001.65 × 890,651,981.90
  4. Step 4: Simplify right side
    1,257,984,001.10x = 1,680,638,915,667,310,336
  5. Step 5: Solve for x
    x = 1,680,638,915,667,310,336/1,257,984,001.10
  6. Step 6: Final answer
    x = 1,335,977,972.85

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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.