Home / 867,118,727.12-1,196,620,812.56-470,641,694.94

Finding the Fourth Proportional to 867,118,727.12, 1,196,620,812.56 and 470,641,694.94

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Solution

The fourth proportional to 867,118,727.12, 1,196,620,812.56 and 470,641,694.94 is: 649,483,893.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,118,727.12 : 1,196,620,812.56 = 470,641,694.94 : x
  2. Step 2: Convert to fraction form
    867,118,727.12/1,196,620,812.56 = 470,641,694.94/x
  3. Step 3: Cross multiply
    867,118,727.12x = 1,196,620,812.56 × 470,641,694.94
  4. Step 4: Simplify right side
    867,118,727.12x = 563,179,647,423,718,400
  5. Step 5: Solve for x
    x = 563,179,647,423,718,400/867,118,727.12
  6. Step 6: Final answer
    x = 649,483,893.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.