Home / 261,543,043.20-392,314,564.80-70,066,819.20

Finding the Fourth Proportional to 261,543,043.20, 392,314,564.80 and 70,066,819.20

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Solution

The fourth proportional to 261,543,043.20, 392,314,564.80 and 70,066,819.20 is: 105,100,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,543,043.20 : 392,314,564.80 = 70,066,819.20 : x
  2. Step 2: Convert to fraction form
    261,543,043.20/392,314,564.80 = 70,066,819.20/x
  3. Step 3: Cross multiply
    261,543,043.20x = 392,314,564.80 × 70,066,819.20
  4. Step 4: Simplify right side
    261,543,043.20x = 27,488,233,681,368,288
  5. Step 5: Solve for x
    x = 27,488,233,681,368,288/261,543,043.20
  6. Step 6: Final answer
    x = 105,100,228.80

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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.