Home / 684,288,003.70-1,026,432,005.55-411,518,365.30

Finding the Fourth Proportional to 684,288,003.70, 1,026,432,005.55 and 411,518,365.30

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Solution

The fourth proportional to 684,288,003.70, 1,026,432,005.55 and 411,518,365.30 is: 617,277,547.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,288,003.70 : 1,026,432,005.55 = 411,518,365.30 : x
  2. Step 2: Convert to fraction form
    684,288,003.70/1,026,432,005.55 = 411,518,365.30/x
  3. Step 3: Cross multiply
    684,288,003.70x = 1,026,432,005.55 × 411,518,365.30
  4. Step 4: Simplify right side
    684,288,003.70x = 422,395,621,015,536,512
  5. Step 5: Solve for x
    x = 422,395,621,015,536,512/684,288,003.70
  6. Step 6: Final answer
    x = 617,277,547.95

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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.