Home / 30,579,055.68-42,199,102.84-16,828,019.88

Finding the Fourth Proportional to 30,579,055.68, 42,199,102.84 and 16,828,019.88

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Solution

The fourth proportional to 30,579,055.68, 42,199,102.84 and 16,828,019.88 is: 23,222,670.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,055.68 : 42,199,102.84 = 16,828,019.88 : x
  2. Step 2: Convert to fraction form
    30,579,055.68/42,199,102.84 = 16,828,019.88/x
  3. Step 3: Cross multiply
    30,579,055.68x = 42,199,102.84 × 16,828,019.88
  4. Step 4: Simplify right side
    30,579,055.68x = 710,127,341,509,684.50
  5. Step 5: Solve for x
    x = 710,127,341,509,684.50/30,579,055.68
  6. Step 6: Final answer
    x = 23,222,670.74

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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.