Home / 354,290,947.40-531,436,421.10-217,532,880.20

Finding the Fourth Proportional to 354,290,947.40, 531,436,421.10 and 217,532,880.20

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Solution

The fourth proportional to 354,290,947.40, 531,436,421.10 and 217,532,880.20 is: 326,299,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,290,947.40 : 531,436,421.10 = 217,532,880.20 : x
  2. Step 2: Convert to fraction form
    354,290,947.40/531,436,421.10 = 217,532,880.20/x
  3. Step 3: Cross multiply
    354,290,947.40x = 531,436,421.10 × 217,532,880.20
  4. Step 4: Simplify right side
    354,290,947.40x = 115,604,895,325,063,056
  5. Step 5: Solve for x
    x = 115,604,895,325,063,056/354,290,947.40
  6. Step 6: Final answer
    x = 326,299,320.30

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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.