Home / 72,426,603.60-108,639,905.40-38,414,379.60

Finding the Fourth Proportional to 72,426,603.60, 108,639,905.40 and 38,414,379.60

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Solution

The fourth proportional to 72,426,603.60, 108,639,905.40 and 38,414,379.60 is: 57,621,569.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426,603.60 : 108,639,905.40 = 38,414,379.60 : x
  2. Step 2: Convert to fraction form
    72,426,603.60/108,639,905.40 = 38,414,379.60/x
  3. Step 3: Cross multiply
    72,426,603.60x = 108,639,905.40 × 38,414,379.60
  4. Step 4: Simplify right side
    72,426,603.60x = 4,173,334,565,743,690
  5. Step 5: Solve for x
    x = 4,173,334,565,743,690/72,426,603.60
  6. Step 6: Final answer
    x = 57,621,569.40

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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.