Home / 318,853,376.20-478,280,064.30-210,014,259.40

Finding the Fourth Proportional to 318,853,376.20, 478,280,064.30 and 210,014,259.40

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Solution

The fourth proportional to 318,853,376.20, 478,280,064.30 and 210,014,259.40 is: 315,021,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,853,376.20 : 478,280,064.30 = 210,014,259.40 : x
  2. Step 2: Convert to fraction form
    318,853,376.20/478,280,064.30 = 210,014,259.40/x
  3. Step 3: Cross multiply
    318,853,376.20x = 478,280,064.30 × 210,014,259.40
  4. Step 4: Simplify right side
    318,853,376.20x = 100,445,633,489,748,880
  5. Step 5: Solve for x
    x = 100,445,633,489,748,880/318,853,376.20
  6. Step 6: Final answer
    x = 315,021,389.10

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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.