Home / 409,547,379,549.32-613,650,221,901.74-218,116,171,882.52

Finding the Fourth Proportional to 409,547,379,549.32, 613,650,221,901.74 and 218,116,171,882.52

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Solution

The fourth proportional to 409,547,379,549.32, 613,650,221,901.74 and 218,116,171,882.52 is: 326,816,978,839.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,547,379,549.32 : 613,650,221,901.74 = 218,116,171,882.52 : x
  2. Step 2: Convert to fraction form
    409,547,379,549.32/613,650,221,901.74 = 218,116,171,882.52/x
  3. Step 3: Cross multiply
    409,547,379,549.32x = 613,650,221,901.74 × 218,116,171,882.52
  4. Step 4: Simplify right side
    409,547,379,549.32x = 133,847,037,276,066,443,952,128
  5. Step 5: Solve for x
    x = 133,847,037,276,066,443,952,128/409,547,379,549.32
  6. Step 6: Final answer
    x = 326,816,978,839.80

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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.