Home / 15,060,646.40-20,783,853-8,185,128.80

Finding the Fourth Proportional to 15,060,646.40, 20,783,853 and 8,185,128.80

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Solution

The fourth proportional to 15,060,646.40, 20,783,853 and 8,185,128.80 is: 11,295,565.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,060,646.40 : 20,783,853 = 8,185,128.80 : x
  2. Step 2: Convert to fraction form
    15,060,646.40/20,783,853 = 8,185,128.80/x
  3. Step 3: Cross multiply
    15,060,646.40x = 20,783,853 × 8,185,128.80
  4. Step 4: Simplify right side
    15,060,646.40x = 170,118,513,765,266.41
  5. Step 5: Solve for x
    x = 170,118,513,765,266.41/15,060,646.40
  6. Step 6: Final answer
    x = 11,295,565.23

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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.