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Finding the Fourth Proportional to 64,702,623.66, 97,054,793.55 and 21,571,840.89

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Solution

The fourth proportional to 64,702,623.66, 97,054,793.55 and 21,571,840.89 is: 32,358,047.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,702,623.66 : 97,054,793.55 = 21,571,840.89 : x
  2. Step 2: Convert to fraction form
    64,702,623.66/97,054,793.55 = 21,571,840.89/x
  3. Step 3: Cross multiply
    64,702,623.66x = 97,054,793.55 × 21,571,840.89
  4. Step 4: Simplify right side
    64,702,623.66x = 2,093,650,564,072,398.25
  5. Step 5: Solve for x
    x = 2,093,650,564,072,398.25/64,702,623.66
  6. Step 6: Final answer
    x = 32,358,047.41

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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.