Home / 1,056,816,178.05-1,585,224,267.08-280,581,643.65

Finding the Fourth Proportional to 1,056,816,178.05, 1,585,224,267.08 and 280,581,643.65

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Solution

The fourth proportional to 1,056,816,178.05, 1,585,224,267.08 and 280,581,643.65 is: 420,872,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,816,178.05 : 1,585,224,267.08 = 280,581,643.65 : x
  2. Step 2: Convert to fraction form
    1,056,816,178.05/1,585,224,267.08 = 280,581,643.65/x
  3. Step 3: Cross multiply
    1,056,816,178.05x = 1,585,224,267.08 × 280,581,643.65
  4. Step 4: Simplify right side
    1,056,816,178.05x = 444,784,830,409,770,048
  5. Step 5: Solve for x
    x = 444,784,830,409,770,048/1,056,816,178.05
  6. Step 6: Final answer
    x = 420,872,465.48

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Double scale
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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.