Home / 317,953,209.20-476,929,813.80-99,621,791.60

Finding the Fourth Proportional to 317,953,209.20, 476,929,813.80 and 99,621,791.60

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Solution

The fourth proportional to 317,953,209.20, 476,929,813.80 and 99,621,791.60 is: 149,432,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,953,209.20 : 476,929,813.80 = 99,621,791.60 : x
  2. Step 2: Convert to fraction form
    317,953,209.20/476,929,813.80 = 99,621,791.60/x
  3. Step 3: Cross multiply
    317,953,209.20x = 476,929,813.80 × 99,621,791.60
  4. Step 4: Simplify right side
    317,953,209.20x = 47,512,602,518,210,400
  5. Step 5: Solve for x
    x = 47,512,602,518,210,400/317,953,209.20
  6. Step 6: Final answer
    x = 149,432,687.40

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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.