Home / 30,632,943.60-45,886,429.80-21,059,132.40

Finding the Fourth Proportional to 30,632,943.60, 45,886,429.80 and 21,059,132.40

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Solution

The fourth proportional to 30,632,943.60, 45,886,429.80 and 21,059,132.40 is: 31,545,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,632,943.60 : 45,886,429.80 = 21,059,132.40 : x
  2. Step 2: Convert to fraction form
    30,632,943.60/45,886,429.80 = 21,059,132.40/x
  3. Step 3: Cross multiply
    30,632,943.60x = 45,886,429.80 × 21,059,132.40
  4. Step 4: Simplify right side
    30,632,943.60x = 966,328,400,521,505.38
  5. Step 5: Solve for x
    x = 966,328,400,521,505.38/30,632,943.60
  6. Step 6: Final answer
    x = 31,545,398.09

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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.