Home / 1,263,729,678.40-1,743,937,439.61-706,812,752.80

Finding the Fourth Proportional to 1,263,729,678.40, 1,743,937,439.61 and 706,812,752.80

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Solution

The fourth proportional to 1,263,729,678.40, 1,743,937,439.61 and 706,812,752.80 is: 975,396,276.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,729,678.40 : 1,743,937,439.61 = 706,812,752.80 : x
  2. Step 2: Convert to fraction form
    1,263,729,678.40/1,743,937,439.61 = 706,812,752.80/x
  3. Step 3: Cross multiply
    1,263,729,678.40x = 1,743,937,439.61 × 706,812,752.80
  4. Step 4: Simplify right side
    1,263,729,678.40x = 1,232,637,222,401,727,744
  5. Step 5: Solve for x
    x = 1,232,637,222,401,727,744/1,263,729,678.40
  6. Step 6: Final answer
    x = 975,396,276.17

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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.