Home / 77,492,206.80-106,939,245.68-42,684,789.60

Finding the Fourth Proportional to 77,492,206.80, 106,939,245.68 and 42,684,789.60

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Solution

The fourth proportional to 77,492,206.80, 106,939,245.68 and 42,684,789.60 is: 58,905,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,492,206.80 : 106,939,245.68 = 42,684,789.60 : x
  2. Step 2: Convert to fraction form
    77,492,206.80/106,939,245.68 = 42,684,789.60/x
  3. Step 3: Cross multiply
    77,492,206.80x = 106,939,245.68 × 42,684,789.60
  4. Step 4: Simplify right side
    77,492,206.80x = 4,564,679,201,833,509
  5. Step 5: Solve for x
    x = 4,564,679,201,833,509/77,492,206.80
  6. Step 6: Final answer
    x = 58,905,009.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.