Home / 30,478,512.74-42,060,374.69-16,539,867.70

Finding the Fourth Proportional to 30,478,512.74, 42,060,374.69 and 16,539,867.70

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Solution

The fourth proportional to 30,478,512.74, 42,060,374.69 and 16,539,867.70 is: 22,825,032.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,478,512.74 : 42,060,374.69 = 16,539,867.70 : x
  2. Step 2: Convert to fraction form
    30,478,512.74/42,060,374.69 = 16,539,867.70/x
  3. Step 3: Cross multiply
    30,478,512.74x = 42,060,374.69 × 16,539,867.70
  4. Step 4: Simplify right side
    30,478,512.74x = 695,673,032,597,178.25
  5. Step 5: Solve for x
    x = 695,673,032,597,178.25/30,478,512.74
  6. Step 6: Final answer
    x = 22,825,032.13

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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.