Home / 1,390,309,358.20-2,086,807,730.10-700,994,951.80

Finding the Fourth Proportional to 1,390,309,358.20, 2,086,807,730.10 and 700,994,951.80

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Solution

The fourth proportional to 1,390,309,358.20, 2,086,807,730.10 and 700,994,951.80 is: 1,052,169,918.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,309,358.20 : 2,086,807,730.10 = 700,994,951.80 : x
  2. Step 2: Convert to fraction form
    1,390,309,358.20/2,086,807,730.10 = 700,994,951.80/x
  3. Step 3: Cross multiply
    1,390,309,358.20x = 2,086,807,730.10 × 700,994,951.80
  4. Step 4: Simplify right side
    1,390,309,358.20x = 1,462,841,684,177,316,864
  5. Step 5: Solve for x
    x = 1,462,841,684,177,316,864/1,390,309,358.20
  6. Step 6: Final answer
    x = 1,052,169,918.55

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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.