Home / 752,473,848.54-1,128,856,128.39-286,099,010.76

Finding the Fourth Proportional to 752,473,848.54, 1,128,856,128.39 and 286,099,010.76

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Solution

The fourth proportional to 752,473,848.54, 1,128,856,128.39 and 286,099,010.76 is: 429,203,781.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    752,473,848.54 : 1,128,856,128.39 = 286,099,010.76 : x
  2. Step 2: Convert to fraction form
    752,473,848.54/1,128,856,128.39 = 286,099,010.76/x
  3. Step 3: Cross multiply
    752,473,848.54x = 1,128,856,128.39 × 286,099,010.76
  4. Step 4: Simplify right side
    752,473,848.54x = 322,964,621,622,742,592
  5. Step 5: Solve for x
    x = 322,964,621,622,742,592/752,473,848.54
  6. Step 6: Final answer
    x = 429,203,781.96

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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.