Home / 321,819,421.60-482,729,132.40-289,570,794.40

Finding the Fourth Proportional to 321,819,421.60, 482,729,132.40 and 289,570,794.40

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Solution

The fourth proportional to 321,819,421.60, 482,729,132.40 and 289,570,794.40 is: 434,356,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,819,421.60 : 482,729,132.40 = 289,570,794.40 : x
  2. Step 2: Convert to fraction form
    321,819,421.60/482,729,132.40 = 289,570,794.40/x
  3. Step 3: Cross multiply
    321,819,421.60x = 482,729,132.40 × 289,570,794.40
  4. Step 4: Simplify right side
    321,819,421.60x = 139,784,258,349,090,768
  5. Step 5: Solve for x
    x = 139,784,258,349,090,768/321,819,421.60
  6. Step 6: Final answer
    x = 434,356,191.60

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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.