Home / 420,152,102.70-630,228,154.05-267,475,008.30

Finding the Fourth Proportional to 420,152,102.70, 630,228,154.05 and 267,475,008.30

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Solution

The fourth proportional to 420,152,102.70, 630,228,154.05 and 267,475,008.30 is: 401,212,512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,152,102.70 : 630,228,154.05 = 267,475,008.30 : x
  2. Step 2: Convert to fraction form
    420,152,102.70/630,228,154.05 = 267,475,008.30/x
  3. Step 3: Cross multiply
    420,152,102.70x = 630,228,154.05 × 267,475,008.30
  4. Step 4: Simplify right side
    420,152,102.70x = 168,570,280,735,417,408
  5. Step 5: Solve for x
    x = 168,570,280,735,417,408/420,152,102.70
  6. Step 6: Final answer
    x = 401,212,512.45

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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.