Home / 321,819,420.60-482,729,130.90-289,570,793.40

Finding the Fourth Proportional to 321,819,420.60, 482,729,130.90 and 289,570,793.40

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Solution

The fourth proportional to 321,819,420.60, 482,729,130.90 and 289,570,793.40 is: 434,356,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,819,420.60 : 482,729,130.90 = 289,570,793.40 : x
  2. Step 2: Convert to fraction form
    321,819,420.60/482,729,130.90 = 289,570,793.40/x
  3. Step 3: Cross multiply
    321,819,420.60x = 482,729,130.90 × 289,570,793.40
  4. Step 4: Simplify right side
    321,819,420.60x = 139,784,257,432,005,440
  5. Step 5: Solve for x
    x = 139,784,257,432,005,440/321,819,420.60
  6. Step 6: Final answer
    x = 434,356,190.10

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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.