Home / 406,666,223.55-561,429,844.56-311,116,965.84

Finding the Fourth Proportional to 406,666,223.55, 561,429,844.56 and 311,116,965.84

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Solution

The fourth proportional to 406,666,223.55, 561,429,844.56 and 311,116,965.84 is: 429,517,721.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,666,223.55 : 561,429,844.56 = 311,116,965.84 : x
  2. Step 2: Convert to fraction form
    406,666,223.55/561,429,844.56 = 311,116,965.84/x
  3. Step 3: Cross multiply
    406,666,223.55x = 561,429,844.56 × 311,116,965.84
  4. Step 4: Simplify right side
    406,666,223.55x = 174,670,349,771,529,984
  5. Step 5: Solve for x
    x = 174,670,349,771,529,984/406,666,223.55
  6. Step 6: Final answer
    x = 429,517,721.55

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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.