Home / 217,782,149.72-300,539,409.82-118,662,897.11

Finding the Fourth Proportional to 217,782,149.72, 300,539,409.82 and 118,662,897.11

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Solution

The fourth proportional to 217,782,149.72, 300,539,409.82 and 118,662,897.11 is: 163,754,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,782,149.72 : 300,539,409.82 = 118,662,897.11 : x
  2. Step 2: Convert to fraction form
    217,782,149.72/300,539,409.82 = 118,662,897.11/x
  3. Step 3: Cross multiply
    217,782,149.72x = 300,539,409.82 × 118,662,897.11
  4. Step 4: Simplify right side
    217,782,149.72x = 35,662,877,063,171,432
  5. Step 5: Solve for x
    x = 35,662,877,063,171,432/217,782,149.72
  6. Step 6: Final answer
    x = 163,754,821.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.