Home / 961,121,816,747.40-1,326,349,088,702.70-521,659,291,564.40

Finding the Fourth Proportional to 961,121,816,747.40, 1,326,349,088,702.70 and 521,659,291,564.40

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Solution

The fourth proportional to 961,121,816,747.40, 1,326,349,088,702.70 and 521,659,291,564.40 is: 719,890,355,128.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,121,816,747.40 : 1,326,349,088,702.70 = 521,659,291,564.40 : x
  2. Step 2: Convert to fraction form
    961,121,816,747.40/1,326,349,088,702.70 = 521,659,291,564.40/x
  3. Step 3: Cross multiply
    961,121,816,747.40x = 1,326,349,088,702.70 × 521,659,291,564.40
  4. Step 4: Simplify right side
    961,121,816,747.40x = 691,902,325,979,738,072,416,256
  5. Step 5: Solve for x
    x = 691,902,325,979,738,072,416,256/961,121,816,747.40
  6. Step 6: Final answer
    x = 719,890,355,128.19

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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.