Home / 21,294,612.60-31,955,040.90-8,513,784.60

Finding the Fourth Proportional to 21,294,612.60, 31,955,040.90 and 8,513,784.60

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Solution

The fourth proportional to 21,294,612.60, 31,955,040.90 and 8,513,784.60 is: 12,775,923.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294,612.60 : 31,955,040.90 = 8,513,784.60 : x
  2. Step 2: Convert to fraction form
    21,294,612.60/31,955,040.90 = 8,513,784.60/x
  3. Step 3: Cross multiply
    21,294,612.60x = 31,955,040.90 × 8,513,784.60
  4. Step 4: Simplify right side
    21,294,612.60x = 272,058,335,106,790.12
  5. Step 5: Solve for x
    x = 272,058,335,106,790.12/21,294,612.60
  6. Step 6: Final answer
    x = 12,775,923.20

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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.