Home / 186,020,443.20-279,030,664.80-145,665,422.40

Finding the Fourth Proportional to 186,020,443.20, 279,030,664.80 and 145,665,422.40

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Solution

The fourth proportional to 186,020,443.20, 279,030,664.80 and 145,665,422.40 is: 218,498,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,020,443.20 : 279,030,664.80 = 145,665,422.40 : x
  2. Step 2: Convert to fraction form
    186,020,443.20/279,030,664.80 = 145,665,422.40/x
  3. Step 3: Cross multiply
    186,020,443.20x = 279,030,664.80 × 145,665,422.40
  4. Step 4: Simplify right side
    186,020,443.20x = 40,645,119,650,644,816
  5. Step 5: Solve for x
    x = 40,645,119,650,644,816/186,020,443.20
  6. Step 6: Final answer
    x = 218,498,133.60

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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.