Home / 1,259,714,693.70-1,889,572,040.55-865,172,895.30

Finding the Fourth Proportional to 1,259,714,693.70, 1,889,572,040.55 and 865,172,895.30

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Solution

The fourth proportional to 1,259,714,693.70, 1,889,572,040.55 and 865,172,895.30 is: 1,297,759,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,714,693.70 : 1,889,572,040.55 = 865,172,895.30 : x
  2. Step 2: Convert to fraction form
    1,259,714,693.70/1,889,572,040.55 = 865,172,895.30/x
  3. Step 3: Cross multiply
    1,259,714,693.70x = 1,889,572,040.55 × 865,172,895.30
  4. Step 4: Simplify right side
    1,259,714,693.70x = 1,634,806,513,200,572,416
  5. Step 5: Solve for x
    x = 1,634,806,513,200,572,416/1,259,714,693.70
  6. Step 6: Final answer
    x = 1,297,759,342.95

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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.