Home / 74,890,640.40-112,209,989.40-64,057,117.20

Finding the Fourth Proportional to 74,890,640.40, 112,209,989.40 and 64,057,117.20

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Solution

The fourth proportional to 74,890,640.40, 112,209,989.40 and 64,057,117.20 is: 95,977,927.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,890,640.40 : 112,209,989.40 = 64,057,117.20 : x
  2. Step 2: Convert to fraction form
    74,890,640.40/112,209,989.40 = 64,057,117.20/x
  3. Step 3: Cross multiply
    74,890,640.40x = 112,209,989.40 × 64,057,117.20
  4. Step 4: Simplify right side
    74,890,640.40x = 7,187,848,442,006,558
  5. Step 5: Solve for x
    x = 7,187,848,442,006,558/74,890,640.40
  6. Step 6: Final answer
    x = 95,977,927.33

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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.