Home / 99,778,897.60-149,724,333.60-42,261,380.80

Finding the Fourth Proportional to 99,778,897.60, 149,724,333.60 and 42,261,380.80

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Solution

The fourth proportional to 99,778,897.60, 149,724,333.60 and 42,261,380.80 is: 63,415,784.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,778,897.60 : 149,724,333.60 = 42,261,380.80 : x
  2. Step 2: Convert to fraction form
    99,778,897.60/149,724,333.60 = 42,261,380.80/x
  3. Step 3: Cross multiply
    99,778,897.60x = 149,724,333.60 × 42,261,380.80
  4. Step 4: Simplify right side
    99,778,897.60x = 6,327,557,077,295,834
  5. Step 5: Solve for x
    x = 6,327,557,077,295,834/99,778,897.60
  6. Step 6: Final answer
    x = 63,415,784.59

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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.