Home / 618,473,116-853,471,153.20-340,012,612

Finding the Fourth Proportional to 618,473,116, 853,471,153.20 and 340,012,612

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Solution

The fourth proportional to 618,473,116, 853,471,153.20 and 340,012,612 is: 469,205,448.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,473,116 : 853,471,153.20 = 340,012,612 : x
  2. Step 2: Convert to fraction form
    618,473,116/853,471,153.20 = 340,012,612/x
  3. Step 3: Cross multiply
    618,473,116x = 853,471,153.20 × 340,012,612
  4. Step 4: Simplify right side
    618,473,116x = 290,190,956,066,184,192
  5. Step 5: Solve for x
    x = 290,190,956,066,184,192/618,473,116
  6. Step 6: Final answer
    x = 469,205,448.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.