Home / 156,238,997.51-234,371,275.64-78,475,916.27

Finding the Fourth Proportional to 156,238,997.51, 234,371,275.64 and 78,475,916.27

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Solution

The fourth proportional to 156,238,997.51, 234,371,275.64 and 78,475,916.27 is: 117,720,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,238,997.51 : 234,371,275.64 = 78,475,916.27 : x
  2. Step 2: Convert to fraction form
    156,238,997.51/234,371,275.64 = 78,475,916.27/x
  3. Step 3: Cross multiply
    156,238,997.51x = 234,371,275.64 × 78,475,916.27
  4. Step 4: Simplify right side
    156,238,997.51x = 18,392,500,603,705,560
  5. Step 5: Solve for x
    x = 18,392,500,603,705,560/156,238,997.51
  6. Step 6: Final answer
    x = 117,720,293.25

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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.