Home / 354,375,421.60-531,563,132.40-315,408,330.40

Finding the Fourth Proportional to 354,375,421.60, 531,563,132.40 and 315,408,330.40

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Solution

The fourth proportional to 354,375,421.60, 531,563,132.40 and 315,408,330.40 is: 473,112,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,375,421.60 : 531,563,132.40 = 315,408,330.40 : x
  2. Step 2: Convert to fraction form
    354,375,421.60/531,563,132.40 = 315,408,330.40/x
  3. Step 3: Cross multiply
    354,375,421.60x = 531,563,132.40 × 315,408,330.40
  4. Step 4: Simplify right side
    354,375,421.60x = 167,659,440,092,478,112
  5. Step 5: Solve for x
    x = 167,659,440,092,478,112/354,375,421.60
  6. Step 6: Final answer
    x = 473,112,495.60

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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.