Home / 498,340,214.28-687,688,679.70-286,630,944.84

Finding the Fourth Proportional to 498,340,214.28, 687,688,679.70 and 286,630,944.84

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Solution

The fourth proportional to 498,340,214.28, 687,688,679.70 and 286,630,944.84 is: 395,538,731.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,340,214.28 : 687,688,679.70 = 286,630,944.84 : x
  2. Step 2: Convert to fraction form
    498,340,214.28/687,688,679.70 = 286,630,944.84/x
  3. Step 3: Cross multiply
    498,340,214.28x = 687,688,679.70 × 286,630,944.84
  4. Step 4: Simplify right side
    498,340,214.28x = 197,112,856,018,183,136
  5. Step 5: Solve for x
    x = 197,112,856,018,183,136/498,340,214.28
  6. Step 6: Final answer
    x = 395,538,731.11

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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.