Home / 85,938,705.60-128,719,101.60-74,601,297.60

Finding the Fourth Proportional to 85,938,705.60, 128,719,101.60 and 74,601,297.60

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Solution

The fourth proportional to 85,938,705.60, 128,719,101.60 and 74,601,297.60 is: 111,737,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,938,705.60 : 128,719,101.60 = 74,601,297.60 : x
  2. Step 2: Convert to fraction form
    85,938,705.60/128,719,101.60 = 74,601,297.60/x
  3. Step 3: Cross multiply
    85,938,705.60x = 128,719,101.60 × 74,601,297.60
  4. Step 4: Simplify right side
    85,938,705.60x = 9,602,612,005,266,234
  5. Step 5: Solve for x
    x = 9,602,612,005,266,234/85,938,705.60
  6. Step 6: Final answer
    x = 111,737,917.60

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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.