Home / 959,293,813.40-1,438,940,720.10-551,147,125.40

Finding the Fourth Proportional to 959,293,813.40, 1,438,940,720.10 and 551,147,125.40

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Solution

The fourth proportional to 959,293,813.40, 1,438,940,720.10 and 551,147,125.40 is: 826,720,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,293,813.40 : 1,438,940,720.10 = 551,147,125.40 : x
  2. Step 2: Convert to fraction form
    959,293,813.40/1,438,940,720.10 = 551,147,125.40/x
  3. Step 3: Cross multiply
    959,293,813.40x = 1,438,940,720.10 × 551,147,125.40
  4. Step 4: Simplify right side
    959,293,813.40x = 793,068,041,504,120,960
  5. Step 5: Solve for x
    x = 793,068,041,504,120,960/959,293,813.40
  6. Step 6: Final answer
    x = 826,720,688.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.