Home / 99,879,615.40-149,819,423.10-51,289,724.20

Finding the Fourth Proportional to 99,879,615.40, 149,819,423.10 and 51,289,724.20

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Solution

The fourth proportional to 99,879,615.40, 149,819,423.10 and 51,289,724.20 is: 76,934,586.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,879,615.40 : 149,819,423.10 = 51,289,724.20 : x
  2. Step 2: Convert to fraction form
    99,879,615.40/149,819,423.10 = 51,289,724.20/x
  3. Step 3: Cross multiply
    99,879,615.40x = 149,819,423.10 × 51,289,724.20
  4. Step 4: Simplify right side
    99,879,615.40x = 7,684,196,890,602,109
  5. Step 5: Solve for x
    x = 7,684,196,890,602,109/99,879,615.40
  6. Step 6: Final answer
    x = 76,934,586.30

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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.