Home / 1,011,558,128.49-1,395,980,886.60-565,540,282.89

Finding the Fourth Proportional to 1,011,558,128.49, 1,395,980,886.60 and 565,540,282.89

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Solution

The fourth proportional to 1,011,558,128.49, 1,395,980,886.60 and 565,540,282.89 is: 780,462,736.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,011,558,128.49 : 1,395,980,886.60 = 565,540,282.89 : x
  2. Step 2: Convert to fraction form
    1,011,558,128.49/1,395,980,886.60 = 565,540,282.89/x
  3. Step 3: Cross multiply
    1,011,558,128.49x = 1,395,980,886.60 × 565,540,282.89
  4. Step 4: Simplify right side
    1,011,558,128.49x = 789,483,425,516,796,928
  5. Step 5: Solve for x
    x = 789,483,425,516,796,928/1,011,558,128.49
  6. Step 6: Final answer
    x = 780,462,736.92

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Double scale
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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.