Home / 347,176,981.20-520,009,644.60-210,624,200.40

Finding the Fourth Proportional to 347,176,981.20, 520,009,644.60 and 210,624,200.40

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Solution

The fourth proportional to 347,176,981.20, 520,009,644.60 and 210,624,200.40 is: 315,477,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,176,981.20 : 520,009,644.60 = 210,624,200.40 : x
  2. Step 2: Convert to fraction form
    347,176,981.20/520,009,644.60 = 210,624,200.40/x
  3. Step 3: Cross multiply
    347,176,981.20x = 520,009,644.60 × 210,624,200.40
  4. Step 4: Simplify right side
    347,176,981.20x = 109,526,615,594,163,184
  5. Step 5: Solve for x
    x = 109,526,615,594,163,184/347,176,981.20
  6. Step 6: Final answer
    x = 315,477,757.82

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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.