Home / 1,465,345,978.90-2,198,018,968.35-1,455,142,311.70

Finding the Fourth Proportional to 1,465,345,978.90, 2,198,018,968.35 and 1,455,142,311.70

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Solution

The fourth proportional to 1,465,345,978.90, 2,198,018,968.35 and 1,455,142,311.70 is: 2,182,713,467.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465,345,978.90 : 2,198,018,968.35 = 1,455,142,311.70 : x
  2. Step 2: Convert to fraction form
    1,465,345,978.90/2,198,018,968.35 = 1,455,142,311.70/x
  3. Step 3: Cross multiply
    1,465,345,978.90x = 2,198,018,968.35 × 1,455,142,311.70
  4. Step 4: Simplify right side
    1,465,345,978.90x = 3,198,430,402,765,267,968
  5. Step 5: Solve for x
    x = 3,198,430,402,765,267,968/1,465,345,978.90
  6. Step 6: Final answer
    x = 2,182,713,467.55

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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.