Home / 406,669,870.56-561,210,104.88-221,030,830.56

Finding the Fourth Proportional to 406,669,870.56, 561,210,104.88 and 221,030,830.56

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Solution

The fourth proportional to 406,669,870.56, 561,210,104.88 and 221,030,830.56 is: 305,025,635.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,669,870.56 : 561,210,104.88 = 221,030,830.56 : x
  2. Step 2: Convert to fraction form
    406,669,870.56/561,210,104.88 = 221,030,830.56/x
  3. Step 3: Cross multiply
    406,669,870.56x = 561,210,104.88 × 221,030,830.56
  4. Step 4: Simplify right side
    406,669,870.56x = 124,044,735,600,291,104
  5. Step 5: Solve for x
    x = 124,044,735,600,291,104/406,669,870.56
  6. Step 6: Final answer
    x = 305,025,635.24

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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.