Home / 30,635,858.60-45,890,802.30-21,062,047.40

Finding the Fourth Proportional to 30,635,858.60, 45,890,802.30 and 21,062,047.40

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Solution

The fourth proportional to 30,635,858.60, 45,890,802.30 and 21,062,047.40 is: 31,549,768.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635,858.60 : 45,890,802.30 = 21,062,047.40 : x
  2. Step 2: Convert to fraction form
    30,635,858.60/45,890,802.30 = 21,062,047.40/x
  3. Step 3: Cross multiply
    30,635,858.60x = 45,890,802.30 × 21,062,047.40
  4. Step 4: Simplify right side
    30,635,858.60x = 966,554,253,266,628.88
  5. Step 5: Solve for x
    x = 966,554,253,266,628.88/30,635,858.60
  6. Step 6: Final answer
    x = 31,549,768.72

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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.