Home / 320,579,739,869.96-480,869,333,513.94-81,814,369,727.72

Finding the Fourth Proportional to 320,579,739,869.96, 480,869,333,513.94 and 81,814,369,727.72

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Solution

The fourth proportional to 320,579,739,869.96, 480,869,333,513.94 and 81,814,369,727.72 is: 122,721,484,080.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,579,739,869.96 : 480,869,333,513.94 = 81,814,369,727.72 : x
  2. Step 2: Convert to fraction form
    320,579,739,869.96/480,869,333,513.94 = 81,814,369,727.72/x
  3. Step 3: Cross multiply
    320,579,739,869.96x = 480,869,333,513.94 × 81,814,369,727.72
  4. Step 4: Simplify right side
    320,579,739,869.96x = 39,342,021,442,831,785,132,032
  5. Step 5: Solve for x
    x = 39,342,021,442,831,785,132,032/320,579,739,869.96
  6. Step 6: Final answer
    x = 122,721,484,080.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.