Home / 1,179,075,711.35-1,767,949,920.67-391,707,838.53

Finding the Fourth Proportional to 1,179,075,711.35, 1,767,949,920.67 and 391,707,838.53

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Solution

The fourth proportional to 1,179,075,711.35, 1,767,949,920.67 and 391,707,838.53 is: 587,341,283.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,179,075,711.35 : 1,767,949,920.67 = 391,707,838.53 : x
  2. Step 2: Convert to fraction form
    1,179,075,711.35/1,767,949,920.67 = 391,707,838.53/x
  3. Step 3: Cross multiply
    1,179,075,711.35x = 1,767,949,920.67 × 391,707,838.53
  4. Step 4: Simplify right side
    1,179,075,711.35x = 692,519,842,053,951,360
  5. Step 5: Solve for x
    x = 692,519,842,053,951,360/1,179,075,711.35
  6. Step 6: Final answer
    x = 587,341,283.84

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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.