Home / 40,278,312.60-55,583,905.50-21,943,541.40

Finding the Fourth Proportional to 40,278,312.60, 55,583,905.50 and 21,943,541.40

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Solution

The fourth proportional to 40,278,312.60, 55,583,905.50 and 21,943,541.40 is: 30,281,996.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278,312.60 : 55,583,905.50 = 21,943,541.40 : x
  2. Step 2: Convert to fraction form
    40,278,312.60/55,583,905.50 = 21,943,541.40/x
  3. Step 3: Cross multiply
    40,278,312.60x = 55,583,905.50 × 21,943,541.40
  4. Step 4: Simplify right side
    40,278,312.60x = 1,219,707,731,512,937.50
  5. Step 5: Solve for x
    x = 1,219,707,731,512,937.50/40,278,312.60
  6. Step 6: Final answer
    x = 30,281,996.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.