Home / 688,353,618.58-1,032,529,137.44-215,688,848.92

Finding the Fourth Proportional to 688,353,618.58, 1,032,529,137.44 and 215,688,848.92

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Solution

The fourth proportional to 688,353,618.58, 1,032,529,137.44 and 215,688,848.92 is: 323,532,869.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,353,618.58 : 1,032,529,137.44 = 215,688,848.92 : x
  2. Step 2: Convert to fraction form
    688,353,618.58/1,032,529,137.44 = 215,688,848.92/x
  3. Step 3: Cross multiply
    688,353,618.58x = 1,032,529,137.44 × 215,688,848.92
  4. Step 4: Simplify right side
    688,353,618.58x = 222,705,021,130,794,080
  5. Step 5: Solve for x
    x = 222,705,021,130,794,080/688,353,618.58
  6. Step 6: Final answer
    x = 323,532,869.04

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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.