Home / 30,657,499.20-45,986,248.80-21,102,350.40

Finding the Fourth Proportional to 30,657,499.20, 45,986,248.80 and 21,102,350.40

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Solution

The fourth proportional to 30,657,499.20, 45,986,248.80 and 21,102,350.40 is: 31,653,525.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,657,499.20 : 45,986,248.80 = 21,102,350.40 : x
  2. Step 2: Convert to fraction form
    30,657,499.20/45,986,248.80 = 21,102,350.40/x
  3. Step 3: Cross multiply
    30,657,499.20x = 45,986,248.80 × 21,102,350.40
  4. Step 4: Simplify right side
    30,657,499.20x = 970,417,935,759,179.38
  5. Step 5: Solve for x
    x = 970,417,935,759,179.38/30,657,499.20
  6. Step 6: Final answer
    x = 31,653,525.60

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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.