Home / 1,275,264,386.80-1,912,896,580.20-355,282,716.40

Finding the Fourth Proportional to 1,275,264,386.80, 1,912,896,580.20 and 355,282,716.40

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Solution

The fourth proportional to 1,275,264,386.80, 1,912,896,580.20 and 355,282,716.40 is: 532,924,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,264,386.80 : 1,912,896,580.20 = 355,282,716.40 : x
  2. Step 2: Convert to fraction form
    1,275,264,386.80/1,912,896,580.20 = 355,282,716.40/x
  3. Step 3: Cross multiply
    1,275,264,386.80x = 1,912,896,580.20 × 355,282,716.40
  4. Step 4: Simplify right side
    1,275,264,386.80x = 679,619,093,205,726,464
  5. Step 5: Solve for x
    x = 679,619,093,205,726,464/1,275,264,386.80
  6. Step 6: Final answer
    x = 532,924,074.60

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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.