Home / 557,415,031.40-769,281,763.80-306,563,622.36

Finding the Fourth Proportional to 557,415,031.40, 769,281,763.80 and 306,563,622.36

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Solution

The fourth proportional to 557,415,031.40, 769,281,763.80 and 306,563,622.36 is: 423,084,758.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,415,031.40 : 769,281,763.80 = 306,563,622.36 : x
  2. Step 2: Convert to fraction form
    557,415,031.40/769,281,763.80 = 306,563,622.36/x
  3. Step 3: Cross multiply
    557,415,031.40x = 769,281,763.80 × 306,563,622.36
  4. Step 4: Simplify right side
    557,415,031.40x = 235,833,804,126,017,920
  5. Step 5: Solve for x
    x = 235,833,804,126,017,920/557,415,031.40
  6. Step 6: Final answer
    x = 423,084,758.83

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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.