Home / 43,939,920.80-65,909,881.20-42,148,330.40

Finding the Fourth Proportional to 43,939,920.80, 65,909,881.20 and 42,148,330.40

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Solution

The fourth proportional to 43,939,920.80, 65,909,881.20 and 42,148,330.40 is: 63,222,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,939,920.80 : 65,909,881.20 = 42,148,330.40 : x
  2. Step 2: Convert to fraction form
    43,939,920.80/65,909,881.20 = 42,148,330.40/x
  3. Step 3: Cross multiply
    43,939,920.80x = 65,909,881.20 × 42,148,330.40
  4. Step 4: Simplify right side
    43,939,920.80x = 2,777,991,449,442,348.50
  5. Step 5: Solve for x
    x = 2,777,991,449,442,348.50/43,939,920.80
  6. Step 6: Final answer
    x = 63,222,495.60

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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.