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Finding the Third Proportional to 89,854,027.69 and 128,403,742.69

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Solution

The third proportional to 89,854,027.69 and 128,403,742.69 is: 183,492,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,854,027.69 : 128,403,742.69 = 128,403,742.69 : x
  2. Step 2: Convert to fraction form
    89,854,027.69/128,403,742.69 = 128,403,742.69/x
  3. Step 3: Cross multiply
    89,854,027.69x = 128,403,742.69 × 128,403,742.69
  4. Step 4: Simplify right side
    89,854,027.69x = 16,487,521,136,157,710
  5. Step 5: Solve for x
    x = 16,487,521,136,157,710/89,854,027.69
  6. Step 6: Final answer
    x = 183,492,288.11

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.