Home / 72,435,620.40-108,653,430.60-43,666,947.60

Finding the Fourth Proportional to 72,435,620.40, 108,653,430.60 and 43,666,947.60

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Solution

The fourth proportional to 72,435,620.40, 108,653,430.60 and 43,666,947.60 is: 65,500,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,435,620.40 : 108,653,430.60 = 43,666,947.60 : x
  2. Step 2: Convert to fraction form
    72,435,620.40/108,653,430.60 = 43,666,947.60/x
  3. Step 3: Cross multiply
    72,435,620.40x = 108,653,430.60 × 43,666,947.60
  4. Step 4: Simplify right side
    72,435,620.40x = 4,744,563,660,570,436
  5. Step 5: Solve for x
    x = 4,744,563,660,570,436/72,435,620.40
  6. Step 6: Final answer
    x = 65,500,421.40

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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.