Home / 840,186,980.80-1,259,713,600.80-446,778,923.20

Finding the Fourth Proportional to 840,186,980.80, 1,259,713,600.80 and 446,778,923.20

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Solution

The fourth proportional to 840,186,980.80, 1,259,713,600.80 and 446,778,923.20 is: 669,866,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,186,980.80 : 1,259,713,600.80 = 446,778,923.20 : x
  2. Step 2: Convert to fraction form
    840,186,980.80/1,259,713,600.80 = 446,778,923.20/x
  3. Step 3: Cross multiply
    840,186,980.80x = 1,259,713,600.80 × 446,778,923.20
  4. Step 4: Simplify right side
    840,186,980.80x = 562,813,486,105,818,624
  5. Step 5: Solve for x
    x = 562,813,486,105,818,624/840,186,980.80
  6. Step 6: Final answer
    x = 669,866,945.06

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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.