Home / 1,210,586,594.40-1,815,879,891.60-392,698,895.40

Finding the Fourth Proportional to 1,210,586,594.40, 1,815,879,891.60 and 392,698,895.40

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Solution

The fourth proportional to 1,210,586,594.40, 1,815,879,891.60 and 392,698,895.40 is: 589,048,343.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,586,594.40 : 1,815,879,891.60 = 392,698,895.40 : x
  2. Step 2: Convert to fraction form
    1,210,586,594.40/1,815,879,891.60 = 392,698,895.40/x
  3. Step 3: Cross multiply
    1,210,586,594.40x = 1,815,879,891.60 × 392,698,895.40
  4. Step 4: Simplify right side
    1,210,586,594.40x = 713,094,027,610,391,680
  5. Step 5: Solve for x
    x = 713,094,027,610,391,680/1,210,586,594.40
  6. Step 6: Final answer
    x = 589,048,343.10

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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.