Home / 358,764,136.80-538,146,205.20-86,134,903.80

Finding the Fourth Proportional to 358,764,136.80, 538,146,205.20 and 86,134,903.80

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Solution

The fourth proportional to 358,764,136.80, 538,146,205.20 and 86,134,903.80 is: 129,202,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,764,136.80 : 538,146,205.20 = 86,134,903.80 : x
  2. Step 2: Convert to fraction form
    358,764,136.80/538,146,205.20 = 86,134,903.80/x
  3. Step 3: Cross multiply
    358,764,136.80x = 538,146,205.20 × 86,134,903.80
  4. Step 4: Simplify right side
    358,764,136.80x = 46,353,171,615,237,064
  5. Step 5: Solve for x
    x = 46,353,171,615,237,064/358,764,136.80
  6. Step 6: Final answer
    x = 129,202,355.70

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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.