Home / 78,003,145.80-116,892,744.30-57,371,862.60

Finding the Fourth Proportional to 78,003,145.80, 116,892,744.30 and 57,371,862.60

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Solution

The fourth proportional to 78,003,145.80, 116,892,744.30 and 57,371,862.60 is: 85,975,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003,145.80 : 116,892,744.30 = 57,371,862.60 : x
  2. Step 2: Convert to fraction form
    78,003,145.80/116,892,744.30 = 57,371,862.60/x
  3. Step 3: Cross multiply
    78,003,145.80x = 116,892,744.30 × 57,371,862.60
  4. Step 4: Simplify right side
    78,003,145.80x = 6,706,354,464,916,533
  5. Step 5: Solve for x
    x = 6,706,354,464,916,533/78,003,145.80
  6. Step 6: Final answer
    x = 85,975,435.94

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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.