Home / 705,885,209.20-1,058,827,813.80-318,464,720.20

Finding the Fourth Proportional to 705,885,209.20, 1,058,827,813.80 and 318,464,720.20

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Solution

The fourth proportional to 705,885,209.20, 1,058,827,813.80 and 318,464,720.20 is: 477,697,080.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,885,209.20 : 1,058,827,813.80 = 318,464,720.20 : x
  2. Step 2: Convert to fraction form
    705,885,209.20/1,058,827,813.80 = 318,464,720.20/x
  3. Step 3: Cross multiply
    705,885,209.20x = 1,058,827,813.80 × 318,464,720.20
  4. Step 4: Simplify right side
    705,885,209.20x = 337,199,303,461,794,688
  5. Step 5: Solve for x
    x = 337,199,303,461,794,688/705,885,209.20
  6. Step 6: Final answer
    x = 477,697,080.30

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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.