Home / 1,577,955,980.89-2,177,581,804.55-873,137,669.05

Finding the Fourth Proportional to 1,577,955,980.89, 2,177,581,804.55 and 873,137,669.05

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Solution

The fourth proportional to 1,577,955,980.89, 2,177,581,804.55 and 873,137,669.05 is: 1,204,931,394.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,577,955,980.89 : 2,177,581,804.55 = 873,137,669.05 : x
  2. Step 2: Convert to fraction form
    1,577,955,980.89/2,177,581,804.55 = 873,137,669.05/x
  3. Step 3: Cross multiply
    1,577,955,980.89x = 2,177,581,804.55 × 873,137,669.05
  4. Step 4: Simplify right side
    1,577,955,980.89x = 1,901,328,700,990,479,872
  5. Step 5: Solve for x
    x = 1,901,328,700,990,479,872/1,577,955,980.89
  6. Step 6: Final answer
    x = 1,204,931,394.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.