Home / 79,970,436.86-119,955,655.35-19,386,162.86

Finding the Fourth Proportional to 79,970,436.86, 119,955,655.35 and 19,386,162.86

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Solution

The fourth proportional to 79,970,436.86, 119,955,655.35 and 19,386,162.86 is: 29,079,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,970,436.86 : 119,955,655.35 = 19,386,162.86 : x
  2. Step 2: Convert to fraction form
    79,970,436.86/119,955,655.35 = 19,386,162.86/x
  3. Step 3: Cross multiply
    79,970,436.86x = 119,955,655.35 × 19,386,162.86
  4. Step 4: Simplify right side
    79,970,436.86x = 2,325,479,870,593,130
  5. Step 5: Solve for x
    x = 2,325,479,870,593,130/79,970,436.86
  6. Step 6: Final answer
    x = 29,079,244.30

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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.