Home / 565,379,905,488.45-780,223,207,090.55-308,462,976,759.28

Finding the Fourth Proportional to 565,379,905,488.45, 780,223,207,090.55 and 308,462,976,759.28

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Solution

The fourth proportional to 565,379,905,488.45, 780,223,207,090.55 and 308,462,976,759.28 is: 425,678,328,252.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,379,905,488.45 : 780,223,207,090.55 = 308,462,976,759.28 : x
  2. Step 2: Convert to fraction form
    565,379,905,488.45/780,223,207,090.55 = 308,462,976,759.28/x
  3. Step 3: Cross multiply
    565,379,905,488.45x = 780,223,207,090.55 × 308,462,976,759.28
  4. Step 4: Simplify right side
    565,379,905,488.45x = 240,669,972,995,823,265,382,400
  5. Step 5: Solve for x
    x = 240,669,972,995,823,265,382,400/565,379,905,488.45
  6. Step 6: Final answer
    x = 425,678,328,252.40

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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.