Home / 76,960,542.20-115,440,813.30-70,018,129.40

Finding the Fourth Proportional to 76,960,542.20, 115,440,813.30 and 70,018,129.40

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Solution

The fourth proportional to 76,960,542.20, 115,440,813.30 and 70,018,129.40 is: 105,027,194.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,960,542.20 : 115,440,813.30 = 70,018,129.40 : x
  2. Step 2: Convert to fraction form
    76,960,542.20/115,440,813.30 = 70,018,129.40/x
  3. Step 3: Cross multiply
    76,960,542.20x = 115,440,813.30 × 70,018,129.40
  4. Step 4: Simplify right side
    76,960,542.20x = 8,082,949,803,680,641
  5. Step 5: Solve for x
    x = 8,082,949,803,680,641/76,960,542.20
  6. Step 6: Final answer
    x = 105,027,194.10

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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.