Home / 30,657,501.20-45,986,251.80-21,102,352.40

Finding the Fourth Proportional to 30,657,501.20, 45,986,251.80 and 21,102,352.40

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Solution

The fourth proportional to 30,657,501.20, 45,986,251.80 and 21,102,352.40 is: 31,653,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657,501.20 : 45,986,251.80 = 21,102,352.40 : x
  2. Step 2: Convert to fraction form
    30,657,501.20/45,986,251.80 = 21,102,352.40/x
  3. Step 3: Cross multiply
    30,657,501.20x = 45,986,251.80 × 21,102,352.40
  4. Step 4: Simplify right side
    30,657,501.20x = 970,418,091,038,734.25
  5. Step 5: Solve for x
    x = 970,418,091,038,734.25/30,657,501.20
  6. Step 6: Final answer
    x = 31,653,528.60

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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.