Home / 297,300,020.40-445,950,030.60-81,889,268.40

Finding the Fourth Proportional to 297,300,020.40, 445,950,030.60 and 81,889,268.40

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Solution

The fourth proportional to 297,300,020.40, 445,950,030.60 and 81,889,268.40 is: 122,833,902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,300,020.40 : 445,950,030.60 = 81,889,268.40 : x
  2. Step 2: Convert to fraction form
    297,300,020.40/445,950,030.60 = 81,889,268.40/x
  3. Step 3: Cross multiply
    297,300,020.40x = 445,950,030.60 × 81,889,268.40
  4. Step 4: Simplify right side
    297,300,020.40x = 36,518,521,748,791,616
  5. Step 5: Solve for x
    x = 36,518,521,748,791,616/297,300,020.40
  6. Step 6: Final answer
    x = 122,833,902.60

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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.