Home / 47,692,468.80-71,548,034.40-20,398,708.80

Finding the Fourth Proportional to 47,692,468.80, 71,548,034.40 and 20,398,708.80

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Solution

The fourth proportional to 47,692,468.80, 71,548,034.40 and 20,398,708.80 is: 30,602,054.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,692,468.80 : 71,548,034.40 = 20,398,708.80 : x
  2. Step 2: Convert to fraction form
    47,692,468.80/71,548,034.40 = 20,398,708.80/x
  3. Step 3: Cross multiply
    47,692,468.80x = 71,548,034.40 × 20,398,708.80
  4. Step 4: Simplify right side
    47,692,468.80x = 1,459,487,518,937,983
  5. Step 5: Solve for x
    x = 1,459,487,518,937,983/47,692,468.80
  6. Step 6: Final answer
    x = 30,602,054.28

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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.