Home / 72,123,998.72-108,163,136-23,590,630.40

Finding the Fourth Proportional to 72,123,998.72, 108,163,136 and 23,590,630.40

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Solution

The fourth proportional to 72,123,998.72, 108,163,136 and 23,590,630.40 is: 35,378,467.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,123,998.72 : 108,163,136 = 23,590,630.40 : x
  2. Step 2: Convert to fraction form
    72,123,998.72/108,163,136 = 23,590,630.40/x
  3. Step 3: Cross multiply
    72,123,998.72x = 108,163,136 × 23,590,630.40
  4. Step 4: Simplify right side
    72,123,998.72x = 2,551,636,564,280,934
  5. Step 5: Solve for x
    x = 2,551,636,564,280,934/72,123,998.72
  6. Step 6: Final answer
    x = 35,378,467.77

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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.