Home / 47,878,004.12-66,073,276.14-28,315,661.72

Finding the Fourth Proportional to 47,878,004.12, 66,073,276.14 and 28,315,661.72

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Solution

The fourth proportional to 47,878,004.12, 66,073,276.14 and 28,315,661.72 is: 39,076,577.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,878,004.12 : 66,073,276.14 = 28,315,661.72 : x
  2. Step 2: Convert to fraction form
    47,878,004.12/66,073,276.14 = 28,315,661.72/x
  3. Step 3: Cross multiply
    47,878,004.12x = 66,073,276.14 × 28,315,661.72
  4. Step 4: Simplify right side
    47,878,004.12x = 1,870,908,535,912,387.25
  5. Step 5: Solve for x
    x = 1,870,908,535,912,387.25/47,878,004.12
  6. Step 6: Final answer
    x = 39,076,577.45

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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.