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Finding the Fourth Proportional to 64,679,819.60, 97,019,729.40 and 59,389,029.20

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Solution

The fourth proportional to 64,679,819.60, 97,019,729.40 and 59,389,029.20 is: 89,083,543.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,679,819.60 : 97,019,729.40 = 59,389,029.20 : x
  2. Step 2: Convert to fraction form
    64,679,819.60/97,019,729.40 = 59,389,029.20/x
  3. Step 3: Cross multiply
    64,679,819.60x = 97,019,729.40 × 59,389,029.20
  4. Step 4: Simplify right side
    64,679,819.60x = 5,761,907,542,312,699
  5. Step 5: Solve for x
    x = 5,761,907,542,312,699/64,679,819.60
  6. Step 6: Final answer
    x = 89,083,543.80

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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.