Home / 99,456,999.60-149,185,499.40-72,583,143.60

Finding the Fourth Proportional to 99,456,999.60, 149,185,499.40 and 72,583,143.60

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Solution

The fourth proportional to 99,456,999.60, 149,185,499.40 and 72,583,143.60 is: 108,874,715.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,456,999.60 : 149,185,499.40 = 72,583,143.60 : x
  2. Step 2: Convert to fraction form
    99,456,999.60/149,185,499.40 = 72,583,143.60/x
  3. Step 3: Cross multiply
    99,456,999.60x = 149,185,499.40 × 72,583,143.60
  4. Step 4: Simplify right side
    99,456,999.60x = 10,828,352,525,987,914
  5. Step 5: Solve for x
    x = 10,828,352,525,987,914/99,456,999.60
  6. Step 6: Final answer
    x = 108,874,715.40

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1.5x scale

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.