Home / 1,209,282,205.20-1,813,923,307.80-519,072,003.60

Finding the Fourth Proportional to 1,209,282,205.20, 1,813,923,307.80 and 519,072,003.60

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Solution

The fourth proportional to 1,209,282,205.20, 1,813,923,307.80 and 519,072,003.60 is: 778,608,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,282,205.20 : 1,813,923,307.80 = 519,072,003.60 : x
  2. Step 2: Convert to fraction form
    1,209,282,205.20/1,813,923,307.80 = 519,072,003.60/x
  3. Step 3: Cross multiply
    1,209,282,205.20x = 1,813,923,307.80 × 519,072,003.60
  4. Step 4: Simplify right side
    1,209,282,205.20x = 941,556,805,756,485,504
  5. Step 5: Solve for x
    x = 941,556,805,756,485,504/1,209,282,205.20
  6. Step 6: Final answer
    x = 778,608,005.40

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Double scale
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1.5x scale

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.