Home / 618,771,982.40-928,144,490.48-291,065,853.36

Finding the Fourth Proportional to 618,771,982.40, 928,144,490.48 and 291,065,853.36

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Solution

The fourth proportional to 618,771,982.40, 928,144,490.48 and 291,065,853.36 is: 436,592,437.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,771,982.40 : 928,144,490.48 = 291,065,853.36 : x
  2. Step 2: Convert to fraction form
    618,771,982.40/928,144,490.48 = 291,065,853.36/x
  3. Step 3: Cross multiply
    618,771,982.40x = 928,144,490.48 × 291,065,853.36
  4. Step 4: Simplify right side
    618,771,982.40x = 270,151,168,162,943,616
  5. Step 5: Solve for x
    x = 270,151,168,162,943,616/618,771,982.40
  6. Step 6: Final answer
    x = 436,592,437.68

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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.