Home / 689,848,023.80-1,034,772,035.70-472,169,790.20

Finding the Fourth Proportional to 689,848,023.80, 1,034,772,035.70 and 472,169,790.20

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Solution

The fourth proportional to 689,848,023.80, 1,034,772,035.70 and 472,169,790.20 is: 708,254,685.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,848,023.80 : 1,034,772,035.70 = 472,169,790.20 : x
  2. Step 2: Convert to fraction form
    689,848,023.80/1,034,772,035.70 = 472,169,790.20/x
  3. Step 3: Cross multiply
    689,848,023.80x = 1,034,772,035.70 × 472,169,790.20
  4. Step 4: Simplify right side
    689,848,023.80x = 488,588,095,001,295,936
  5. Step 5: Solve for x
    x = 488,588,095,001,295,936/689,848,023.80
  6. Step 6: Final answer
    x = 708,254,685.30

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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.