Home / 10,355,975.06-15,539,285.10-7,942,631.90

Finding the Fourth Proportional to 10,355,975.06, 15,539,285.10 and 7,942,631.90

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Solution

The fourth proportional to 10,355,975.06, 15,539,285.10 and 7,942,631.90 is: 11,918,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355,975.06 : 15,539,285.10 = 7,942,631.90 : x
  2. Step 2: Convert to fraction form
    10,355,975.06/15,539,285.10 = 7,942,631.90/x
  3. Step 3: Cross multiply
    10,355,975.06x = 15,539,285.10 × 7,942,631.90
  4. Step 4: Simplify right side
    10,355,975.06x = 123,422,821,538,454.69
  5. Step 5: Solve for x
    x = 123,422,821,538,454.69/10,355,975.06
  6. Step 6: Final answer
    x = 11,918,030.01

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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.