Home / 143,139,307.20-214,771,946.40-66,422,846.40

Finding the Fourth Proportional to 143,139,307.20, 214,771,946.40 and 66,422,846.40

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Solution

The fourth proportional to 143,139,307.20, 214,771,946.40 and 66,422,846.40 is: 99,663,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139,307.20 : 214,771,946.40 = 66,422,846.40 : x
  2. Step 2: Convert to fraction form
    143,139,307.20/214,771,946.40 = 66,422,846.40/x
  3. Step 3: Cross multiply
    143,139,307.20x = 214,771,946.40 × 66,422,846.40
  4. Step 4: Simplify right side
    143,139,307.20x = 14,265,764,006,756,234
  5. Step 5: Solve for x
    x = 14,265,764,006,756,234/143,139,307.20
  6. Step 6: Final answer
    x = 99,663,497.65

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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.