Home / 120,753,698.40-181,130,547.60-80,442,914.40

Finding the Fourth Proportional to 120,753,698.40, 181,130,547.60 and 80,442,914.40

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Solution

The fourth proportional to 120,753,698.40, 181,130,547.60 and 80,442,914.40 is: 120,664,371.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,753,698.40 : 181,130,547.60 = 80,442,914.40 : x
  2. Step 2: Convert to fraction form
    120,753,698.40/181,130,547.60 = 80,442,914.40/x
  3. Step 3: Cross multiply
    120,753,698.40x = 181,130,547.60 × 80,442,914.40
  4. Step 4: Simplify right side
    120,753,698.40x = 14,570,669,135,811,926
  5. Step 5: Solve for x
    x = 14,570,669,135,811,926/120,753,698.40
  6. Step 6: Final answer
    x = 120,664,371.60

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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.