Home / 404,572,763.16-558,310,415.12-218,933,780.67

Finding the Fourth Proportional to 404,572,763.16, 558,310,415.12 and 218,933,780.67

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Solution

The fourth proportional to 404,572,763.16, 558,310,415.12 and 218,933,780.67 is: 302,128,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,572,763.16 : 558,310,415.12 = 218,933,780.67 : x
  2. Step 2: Convert to fraction form
    404,572,763.16/558,310,415.12 = 218,933,780.67/x
  3. Step 3: Cross multiply
    404,572,763.16x = 558,310,415.12 × 218,933,780.67
  4. Step 4: Simplify right side
    404,572,763.16x = 122,233,009,968,564,064
  5. Step 5: Solve for x
    x = 122,233,009,968,564,064/404,572,763.16
  6. Step 6: Final answer
    x = 302,128,618.38

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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.