Home / 119,215,712.80-178,823,569.20-112,161,325.60

Finding the Fourth Proportional to 119,215,712.80, 178,823,569.20 and 112,161,325.60

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Solution

The fourth proportional to 119,215,712.80, 178,823,569.20 and 112,161,325.60 is: 168,241,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,215,712.80 : 178,823,569.20 = 112,161,325.60 : x
  2. Step 2: Convert to fraction form
    119,215,712.80/178,823,569.20 = 112,161,325.60/x
  3. Step 3: Cross multiply
    119,215,712.80x = 178,823,569.20 × 112,161,325.60
  4. Step 4: Simplify right side
    119,215,712.80x = 20,057,088,569,995,328
  5. Step 5: Solve for x
    x = 20,057,088,569,995,328/119,215,712.80
  6. Step 6: Final answer
    x = 168,241,988.40

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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.