Home / 520,845,008.76-718,439,166.41-309,001,858.97

Finding the Fourth Proportional to 520,845,008.76, 718,439,166.41 and 309,001,858.97

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Solution

The fourth proportional to 520,845,008.76, 718,439,166.41 and 309,001,858.97 is: 426,228,598.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,845,008.76 : 718,439,166.41 = 309,001,858.97 : x
  2. Step 2: Convert to fraction form
    520,845,008.76/718,439,166.41 = 309,001,858.97/x
  3. Step 3: Cross multiply
    520,845,008.76x = 718,439,166.41 × 309,001,858.97
  4. Step 4: Simplify right side
    520,845,008.76x = 221,999,037,972,409,952
  5. Step 5: Solve for x
    x = 221,999,037,972,409,952/520,845,008.76
  6. Step 6: Final answer
    x = 426,228,598.22

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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.