Home / 565,379,905,489.90-780,223,207,092.70-308,462,976,760.78

Finding the Fourth Proportional to 565,379,905,489.90, 780,223,207,092.70 and 308,462,976,760.78

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Solution

The fourth proportional to 565,379,905,489.90, 780,223,207,092.70 and 308,462,976,760.78 is: 425,678,328,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,379,905,489.90 : 780,223,207,092.70 = 308,462,976,760.78 : x
  2. Step 2: Convert to fraction form
    565,379,905,489.90/780,223,207,092.70 = 308,462,976,760.78/x
  3. Step 3: Cross multiply
    565,379,905,489.90x = 780,223,207,092.70 × 308,462,976,760.78
  4. Step 4: Simplify right side
    565,379,905,489.90x = 240,669,972,997,656,780,210,176
  5. Step 5: Solve for x
    x = 240,669,972,997,656,780,210,176/565,379,905,489.90
  6. Step 6: Final answer
    x = 425,678,328,254.55

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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.