Home / 618,554,305.90-853,622,695.56-377,164,429.57

Finding the Fourth Proportional to 618,554,305.90, 853,622,695.56 and 377,164,429.57

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Solution

The fourth proportional to 618,554,305.90, 853,622,695.56 and 377,164,429.57 is: 520,497,737.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,554,305.90 : 853,622,695.56 = 377,164,429.57 : x
  2. Step 2: Convert to fraction form
    618,554,305.90/853,622,695.56 = 377,164,429.57/x
  3. Step 3: Cross multiply
    618,554,305.90x = 853,622,695.56 × 377,164,429.57
  4. Step 4: Simplify right side
    618,554,305.90x = 321,956,117,038,893,120
  5. Step 5: Solve for x
    x = 321,956,117,038,893,120/618,554,305.90
  6. Step 6: Final answer
    x = 520,497,737.98

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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.