Home / 515,038,501.20-772,557,751.80-494,950,031.40

Finding the Fourth Proportional to 515,038,501.20, 772,557,751.80 and 494,950,031.40

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Solution

The fourth proportional to 515,038,501.20, 772,557,751.80 and 494,950,031.40 is: 742,425,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,038,501.20 : 772,557,751.80 = 494,950,031.40 : x
  2. Step 2: Convert to fraction form
    515,038,501.20/772,557,751.80 = 494,950,031.40/x
  3. Step 3: Cross multiply
    515,038,501.20x = 772,557,751.80 × 494,950,031.40
  4. Step 4: Simplify right side
    515,038,501.20x = 382,377,483,511,723,392
  5. Step 5: Solve for x
    x = 382,377,483,511,723,392/515,038,501.20
  6. Step 6: Final answer
    x = 742,425,047.10

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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.