Home / 30,579,153.76-42,199,237.96-16,828,117.88

Finding the Fourth Proportional to 30,579,153.76, 42,199,237.96 and 16,828,117.88

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Solution

The fourth proportional to 30,579,153.76, 42,199,237.96 and 16,828,117.88 is: 23,222,805.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,153.76 : 42,199,237.96 = 16,828,117.88 : x
  2. Step 2: Convert to fraction form
    30,579,153.76/42,199,237.96 = 16,828,117.88/x
  3. Step 3: Cross multiply
    30,579,153.76x = 42,199,237.96 × 16,828,117.88
  4. Step 4: Simplify right side
    30,579,153.76x = 710,133,750,837,050.75
  5. Step 5: Solve for x
    x = 710,133,750,837,050.75/30,579,153.76
  6. Step 6: Final answer
    x = 23,222,805.85

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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.