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Finding the Fourth Proportional to 66,430,295.70, 99,645,443.55 and 55,848,714.90

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Solution

The fourth proportional to 66,430,295.70, 99,645,443.55 and 55,848,714.90 is: 83,773,072.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,295.70 : 99,645,443.55 = 55,848,714.90 : x
  2. Step 2: Convert to fraction form
    66,430,295.70/99,645,443.55 = 55,848,714.90/x
  3. Step 3: Cross multiply
    66,430,295.70x = 99,645,443.55 × 55,848,714.90
  4. Step 4: Simplify right side
    66,430,295.70x = 5,565,069,967,907,994
  5. Step 5: Solve for x
    x = 5,565,069,967,907,994/66,430,295.70
  6. Step 6: Final answer
    x = 83,773,072.35

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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.