Home / 406,669,871.56-561,210,106.26-221,030,831.56

Finding the Fourth Proportional to 406,669,871.56, 561,210,106.26 and 221,030,831.56

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Solution

The fourth proportional to 406,669,871.56, 561,210,106.26 and 221,030,831.56 is: 305,025,636.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,669,871.56 : 561,210,106.26 = 221,030,831.56 : x
  2. Step 2: Convert to fraction form
    406,669,871.56/561,210,106.26 = 221,030,831.56/x
  3. Step 3: Cross multiply
    406,669,871.56x = 561,210,106.26 × 221,030,831.56
  4. Step 4: Simplify right side
    406,669,871.56x = 124,044,736,466,523,760
  5. Step 5: Solve for x
    x = 124,044,736,466,523,760/406,669,871.56
  6. Step 6: Final answer
    x = 305,025,636.62

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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.