Home / 720,072,133.20-1,080,108,199.80-691,854,584.40

Finding the Fourth Proportional to 720,072,133.20, 1,080,108,199.80 and 691,854,584.40

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Solution

The fourth proportional to 720,072,133.20, 1,080,108,199.80 and 691,854,584.40 is: 1,037,781,876.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,072,133.20 : 1,080,108,199.80 = 691,854,584.40 : x
  2. Step 2: Convert to fraction form
    720,072,133.20/1,080,108,199.80 = 691,854,584.40/x
  3. Step 3: Cross multiply
    720,072,133.20x = 1,080,108,199.80 × 691,854,584.40
  4. Step 4: Simplify right side
    720,072,133.20x = 747,277,809,679,661,056
  5. Step 5: Solve for x
    x = 747,277,809,679,661,056/720,072,133.20
  6. Step 6: Final answer
    x = 1,037,781,876.60

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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.