Home / 1,277,684,039.16-1,763,209,287.36-690,973,175.16

Finding the Fourth Proportional to 1,277,684,039.16, 1,763,209,287.36 and 690,973,175.16

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Solution

The fourth proportional to 1,277,684,039.16, 1,763,209,287.36 and 690,973,175.16 is: 953,545,855.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,684,039.16 : 1,763,209,287.36 = 690,973,175.16 : x
  2. Step 2: Convert to fraction form
    1,277,684,039.16/1,763,209,287.36 = 690,973,175.16/x
  3. Step 3: Cross multiply
    1,277,684,039.16x = 1,763,209,287.36 × 690,973,175.16
  4. Step 4: Simplify right side
    1,277,684,039.16x = 1,218,330,319,758,739,968
  5. Step 5: Solve for x
    x = 1,218,330,319,758,739,968/1,277,684,039.16
  6. Step 6: Final answer
    x = 953,545,855.17

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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.