Home / 780,518,709-1,170,846,881.54-220,285,528.71

Finding the Fourth Proportional to 780,518,709, 1,170,846,881.54 and 220,285,528.71

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Solution

The fourth proportional to 780,518,709, 1,170,846,881.54 and 220,285,528.71 is: 330,447,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,518,709 : 1,170,846,881.54 = 220,285,528.71 : x
  2. Step 2: Convert to fraction form
    780,518,709/1,170,846,881.54 = 220,285,528.71/x
  3. Step 3: Cross multiply
    780,518,709x = 1,170,846,881.54 × 220,285,528.71
  4. Step 4: Simplify right side
    780,518,709x = 257,920,624,337,392,256
  5. Step 5: Solve for x
    x = 257,920,624,337,392,256/780,518,709
  6. Step 6: Final answer
    x = 330,447,715.56

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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.