Home / 405,016,127.64-558,922,275-219,377,143.53

Finding the Fourth Proportional to 405,016,127.64, 558,922,275 and 219,377,143.53

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Solution

The fourth proportional to 405,016,127.64, 558,922,275 and 219,377,143.53 is: 302,740,468.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,016,127.64 : 558,922,275 = 219,377,143.53 : x
  2. Step 2: Convert to fraction form
    405,016,127.64/558,922,275 = 219,377,143.53/x
  3. Step 3: Cross multiply
    405,016,127.64x = 558,922,275 × 219,377,143.53
  4. Step 4: Simplify right side
    405,016,127.64x = 122,614,772,144,789,136
  5. Step 5: Solve for x
    x = 122,614,772,144,789,136/405,016,127.64
  6. Step 6: Final answer
    x = 302,740,468.29

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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.