Home / 1,266,957,987.39-1,901,531,084.94-879,053,222.61

Finding the Fourth Proportional to 1,266,957,987.39, 1,901,531,084.94 and 879,053,222.61

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Solution

The fourth proportional to 1,266,957,987.39, 1,901,531,084.94 and 879,053,222.61 is: 1,319,338,955.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,957,987.39 : 1,901,531,084.94 = 879,053,222.61 : x
  2. Step 2: Convert to fraction form
    1,266,957,987.39/1,901,531,084.94 = 879,053,222.61/x
  3. Step 3: Cross multiply
    1,266,957,987.39x = 1,901,531,084.94 × 879,053,222.61
  4. Step 4: Simplify right side
    1,266,957,987.39x = 1,671,547,028,109,596,672
  5. Step 5: Solve for x
    x = 1,671,547,028,109,596,672/1,266,957,987.39
  6. Step 6: Final answer
    x = 1,319,338,955.79

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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.