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Finding the Fourth Proportional to 66,487,999.60, 99,648,018.60 and 32,335,807.60

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Solution

The fourth proportional to 66,487,999.60, 99,648,018.60 and 32,335,807.60 is: 48,462,868.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,487,999.60 : 99,648,018.60 = 32,335,807.60 : x
  2. Step 2: Convert to fraction form
    66,487,999.60/99,648,018.60 = 32,335,807.60/x
  3. Step 3: Cross multiply
    66,487,999.60x = 99,648,018.60 × 32,335,807.60
  4. Step 4: Simplify right side
    66,487,999.60x = 3,222,199,157,170,821.50
  5. Step 5: Solve for x
    x = 3,222,199,157,170,821.50/66,487,999.60
  6. Step 6: Final answer
    x = 48,462,868.13

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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.