Home / 1,010,886,941.68-1,395,077,867.28-564,861,132.12

Finding the Fourth Proportional to 1,010,886,941.68, 1,395,077,867.28 and 564,861,132.12

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Solution

The fourth proportional to 1,010,886,941.68, 1,395,077,867.28 and 564,861,132.12 is: 779,538,473.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,886,941.68 : 1,395,077,867.28 = 564,861,132.12 : x
  2. Step 2: Convert to fraction form
    1,010,886,941.68/1,395,077,867.28 = 564,861,132.12/x
  3. Step 3: Cross multiply
    1,010,886,941.68x = 1,395,077,867.28 × 564,861,132.12
  4. Step 4: Simplify right side
    1,010,886,941.68x = 788,025,263,507,335,936
  5. Step 5: Solve for x
    x = 788,025,263,507,335,936/1,010,886,941.68
  6. Step 6: Final answer
    x = 779,538,473.61

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Double scale
Find fourth proportional to 1,010,886,942.68, 1,395,077,868.66 and 564,861,133.12
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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.