Home / 811,963,014.96-1,120,510,066.68-440,685,051.12

Finding the Fourth Proportional to 811,963,014.96, 1,120,510,066.68 and 440,685,051.12

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Solution

The fourth proportional to 811,963,014.96, 1,120,510,066.68 and 440,685,051.12 is: 608,145,970.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,963,014.96 : 1,120,510,066.68 = 440,685,051.12 : x
  2. Step 2: Convert to fraction form
    811,963,014.96/1,120,510,066.68 = 440,685,051.12/x
  3. Step 3: Cross multiply
    811,963,014.96x = 1,120,510,066.68 × 440,685,051.12
  4. Step 4: Simplify right side
    811,963,014.96x = 493,792,036,015,350,464
  5. Step 5: Solve for x
    x = 493,792,036,015,350,464/811,963,014.96
  6. Step 6: Final answer
    x = 608,145,970.84

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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.