Home / 876,889,727.62-1,210,107,643.41-480,426,780.58

Finding the Fourth Proportional to 876,889,727.62, 1,210,107,643.41 and 480,426,780.58

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Solution

The fourth proportional to 876,889,727.62, 1,210,107,643.41 and 480,426,780.58 is: 662,988,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,889,727.62 : 1,210,107,643.41 = 480,426,780.58 : x
  2. Step 2: Convert to fraction form
    876,889,727.62/1,210,107,643.41 = 480,426,780.58/x
  3. Step 3: Cross multiply
    876,889,727.62x = 1,210,107,643.41 × 480,426,780.58
  4. Step 4: Simplify right side
    876,889,727.62x = 581,368,119,278,716,928
  5. Step 5: Solve for x
    x = 581,368,119,278,716,928/876,889,727.62
  6. Step 6: Final answer
    x = 662,988,858.20

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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.