Home / 170,814,007.80-256,221,011.70-125,128,452.60

Finding the Fourth Proportional to 170,814,007.80, 256,221,011.70 and 125,128,452.60

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Solution

The fourth proportional to 170,814,007.80, 256,221,011.70 and 125,128,452.60 is: 187,692,678.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,814,007.80 : 256,221,011.70 = 125,128,452.60 : x
  2. Step 2: Convert to fraction form
    170,814,007.80/256,221,011.70 = 125,128,452.60/x
  3. Step 3: Cross multiply
    170,814,007.80x = 256,221,011.70 × 125,128,452.60
  4. Step 4: Simplify right side
    170,814,007.80x = 32,060,538,717,627,492
  5. Step 5: Solve for x
    x = 32,060,538,717,627,492/170,814,007.80
  6. Step 6: Final answer
    x = 187,692,678.90

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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.