Home / 1,396,313,981.70-2,094,303,010.95-578,340,989.70

Finding the Fourth Proportional to 1,396,313,981.70, 2,094,303,010.95 and 578,340,989.70

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Solution

The fourth proportional to 1,396,313,981.70, 2,094,303,010.95 and 578,340,989.70 is: 867,441,916.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,313,981.70 : 2,094,303,010.95 = 578,340,989.70 : x
  2. Step 2: Convert to fraction form
    1,396,313,981.70/2,094,303,010.95 = 578,340,989.70/x
  3. Step 3: Cross multiply
    1,396,313,981.70x = 2,094,303,010.95 × 578,340,989.70
  4. Step 4: Simplify right side
    1,396,313,981.70x = 1,211,221,276,084,513,024
  5. Step 5: Solve for x
    x = 1,211,221,276,084,513,024/1,396,313,981.70
  6. Step 6: Final answer
    x = 867,441,916.33

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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.