Home / 30,687,646.86-42,348,351.84-16,749,101.76

Finding the Fourth Proportional to 30,687,646.86, 42,348,351.84 and 16,749,101.76

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Solution

The fourth proportional to 30,687,646.86, 42,348,351.84 and 16,749,101.76 is: 23,113,432.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,687,646.86 : 42,348,351.84 = 16,749,101.76 : x
  2. Step 2: Convert to fraction form
    30,687,646.86/42,348,351.84 = 16,749,101.76/x
  3. Step 3: Cross multiply
    30,687,646.86x = 42,348,351.84 × 16,749,101.76
  4. Step 4: Simplify right side
    30,687,646.86x = 709,296,854,336,443.25
  5. Step 5: Solve for x
    x = 709,296,854,336,443.25/30,687,646.86
  6. Step 6: Final answer
    x = 23,113,432.50

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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.