Home / 30,579,713.95-42,200,012.21-16,828,678.08

Finding the Fourth Proportional to 30,579,713.95, 42,200,012.21 and 16,828,678.08

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Solution

The fourth proportional to 30,579,713.95, 42,200,012.21 and 16,828,678.08 is: 23,223,579.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,579,713.95 : 42,200,012.21 = 16,828,678.08 : x
  2. Step 2: Convert to fraction form
    30,579,713.95/42,200,012.21 = 16,828,678.08/x
  3. Step 3: Cross multiply
    30,579,713.95x = 42,200,012.21 × 16,828,678.08
  4. Step 4: Simplify right side
    30,579,713.95x = 710,170,420,454,159.25
  5. Step 5: Solve for x
    x = 710,170,420,454,159.25/30,579,713.95
  6. Step 6: Final answer
    x = 23,223,579.58

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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.