Home / 372,343,226,535.88-513,835,221,859.86-209,764,823,187.40

Finding the Fourth Proportional to 372,343,226,535.88, 513,835,221,859.86 and 209,764,823,187.40

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Solution

The fourth proportional to 372,343,226,535.88, 513,835,221,859.86 and 209,764,823,187.40 is: 289,476,340,052.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,343,226,535.88 : 513,835,221,859.86 = 209,764,823,187.40 : x
  2. Step 2: Convert to fraction form
    372,343,226,535.88/513,835,221,859.86 = 209,764,823,187.40/x
  3. Step 3: Cross multiply
    372,343,226,535.88x = 513,835,221,859.86 × 209,764,823,187.40
  4. Step 4: Simplify right side
    372,343,226,535.88x = 107,784,554,460,891,972,632,576
  5. Step 5: Solve for x
    x = 107,784,554,460,891,972,632,576/372,343,226,535.88
  6. Step 6: Final answer
    x = 289,476,340,052.36

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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.