Home / 79,713,643.20-119,570,464.80-43,339,459.20

Finding the Fourth Proportional to 79,713,643.20, 119,570,464.80 and 43,339,459.20

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Solution

The fourth proportional to 79,713,643.20, 119,570,464.80 and 43,339,459.20 is: 65,009,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,713,643.20 : 119,570,464.80 = 43,339,459.20 : x
  2. Step 2: Convert to fraction form
    79,713,643.20/119,570,464.80 = 43,339,459.20/x
  3. Step 3: Cross multiply
    79,713,643.20x = 119,570,464.80 × 43,339,459.20
  4. Step 4: Simplify right side
    79,713,643.20x = 5,182,119,280,724,636
  5. Step 5: Solve for x
    x = 5,182,119,280,724,636/79,713,643.20
  6. Step 6: Final answer
    x = 65,009,188.80

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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.