Home / 68,108,307.20-102,162,460.80-64,749,075.20

Finding the Fourth Proportional to 68,108,307.20, 102,162,460.80 and 64,749,075.20

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Solution

The fourth proportional to 68,108,307.20, 102,162,460.80 and 64,749,075.20 is: 97,123,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,108,307.20 : 102,162,460.80 = 64,749,075.20 : x
  2. Step 2: Convert to fraction form
    68,108,307.20/102,162,460.80 = 64,749,075.20/x
  3. Step 3: Cross multiply
    68,108,307.20x = 102,162,460.80 × 64,749,075.20
  4. Step 4: Simplify right side
    68,108,307.20x = 6,614,924,856,956,252
  5. Step 5: Solve for x
    x = 6,614,924,856,956,252/68,108,307.20
  6. Step 6: Final answer
    x = 97,123,612.80

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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.