Home / 320,579,739,867.96-480,869,333,510.94-81,814,369,725.72

Finding the Fourth Proportional to 320,579,739,867.96, 480,869,333,510.94 and 81,814,369,725.72

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Solution

The fourth proportional to 320,579,739,867.96, 480,869,333,510.94 and 81,814,369,725.72 is: 122,721,484,077.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,579,739,867.96 : 480,869,333,510.94 = 81,814,369,725.72 : x
  2. Step 2: Convert to fraction form
    320,579,739,867.96/480,869,333,510.94 = 81,814,369,725.72/x
  3. Step 3: Cross multiply
    320,579,739,867.96x = 480,869,333,510.94 × 81,814,369,725.72
  4. Step 4: Simplify right side
    320,579,739,867.96x = 39,342,021,441,624,605,720,576
  5. Step 5: Solve for x
    x = 39,342,021,441,624,605,720,576/320,579,739,867.96
  6. Step 6: Final answer
    x = 122,721,484,077.03

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1.5x scale

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.