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Finding the Fourth Proportional to 612,080,461.70, 918,120,692.55 and 606,340,898.90

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Solution

The fourth proportional to 612,080,461.70, 918,120,692.55 and 606,340,898.90 is: 909,511,348.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,080,461.70 : 918,120,692.55 = 606,340,898.90 : x
  2. Step 2: Convert to fraction form
    612,080,461.70/918,120,692.55 = 606,340,898.90/x
  3. Step 3: Cross multiply
    612,080,461.70x = 918,120,692.55 × 606,340,898.90
  4. Step 4: Simplify right side
    612,080,461.70x = 556,694,126,019,457,472
  5. Step 5: Solve for x
    x = 556,694,126,019,457,472/612,080,461.70
  6. Step 6: Final answer
    x = 909,511,348.35

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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.