Home / 1,259,714,920.80-1,889,572,381.20-441,909,890.40

Finding the Fourth Proportional to 1,259,714,920.80, 1,889,572,381.20 and 441,909,890.40

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Solution

The fourth proportional to 1,259,714,920.80, 1,889,572,381.20 and 441,909,890.40 is: 662,864,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,920.80 : 1,889,572,381.20 = 441,909,890.40 : x
  2. Step 2: Convert to fraction form
    1,259,714,920.80/1,889,572,381.20 = 441,909,890.40/x
  3. Step 3: Cross multiply
    1,259,714,920.80x = 1,889,572,381.20 × 441,909,890.40
  4. Step 4: Simplify right side
    1,259,714,920.80x = 835,020,723,878,958,976
  5. Step 5: Solve for x
    x = 835,020,723,878,958,976/1,259,714,920.80
  6. Step 6: Final answer
    x = 662,864,835.60

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1.5x scale

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.