Home / 1,578,817,390,709.70-2,178,780,791,821.30-874,895,012,650.65

Finding the Fourth Proportional to 1,578,817,390,709.70, 2,178,780,791,821.30 and 874,895,012,650.65

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Solution

The fourth proportional to 1,578,817,390,709.70, 2,178,780,791,821.30 and 874,895,012,650.65 is: 1,207,362,206,446.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,817,390,709.70 : 2,178,780,791,821.30 = 874,895,012,650.65 : x
  2. Step 2: Convert to fraction form
    1,578,817,390,709.70/2,178,780,791,821.30 = 874,895,012,650.65/x
  3. Step 3: Cross multiply
    1,578,817,390,709.70x = 2,178,780,791,821.30 × 874,895,012,650.65
  4. Step 4: Simplify right side
    1,578,817,390,709.70x = 1,906,204,448,423,489,642,168,320
  5. Step 5: Solve for x
    x = 1,906,204,448,423,489,642,168,320/1,578,817,390,709.70
  6. Step 6: Final answer
    x = 1,207,362,206,446.58

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Double scale
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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.