Home / 221,617,442.40-332,426,163.60-129,784,437.60

Finding the Fourth Proportional to 221,617,442.40, 332,426,163.60 and 129,784,437.60

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Solution

The fourth proportional to 221,617,442.40, 332,426,163.60 and 129,784,437.60 is: 194,676,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617,442.40 : 332,426,163.60 = 129,784,437.60 : x
  2. Step 2: Convert to fraction form
    221,617,442.40/332,426,163.60 = 129,784,437.60/x
  3. Step 3: Cross multiply
    221,617,442.40x = 332,426,163.60 × 129,784,437.60
  4. Step 4: Simplify right side
    221,617,442.40x = 43,143,742,686,351,592
  5. Step 5: Solve for x
    x = 43,143,742,686,351,592/221,617,442.40
  6. Step 6: Final answer
    x = 194,676,656.40

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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.