Home / 1,132,658,412.16-1,563,147,167.64-686,640,575.12

Finding the Fourth Proportional to 1,132,658,412.16, 1,563,147,167.64 and 686,640,575.12

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Solution

The fourth proportional to 1,132,658,412.16, 1,563,147,167.64 and 686,640,575.12 is: 947,611,617.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,132,658,412.16 : 1,563,147,167.64 = 686,640,575.12 : x
  2. Step 2: Convert to fraction form
    1,132,658,412.16/1,563,147,167.64 = 686,640,575.12/x
  3. Step 3: Cross multiply
    1,132,658,412.16x = 1,563,147,167.64 × 686,640,575.12
  4. Step 4: Simplify right side
    1,132,658,412.16x = 1,073,320,270,185,528,704
  5. Step 5: Solve for x
    x = 1,073,320,270,185,528,704/1,132,658,412.16
  6. Step 6: Final answer
    x = 947,611,617.64

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Double scale
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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.