Home / 20,830,282.59-28,746,086.75-12,009,559.38

Finding the Fourth Proportional to 20,830,282.59, 28,746,086.75 and 12,009,559.38

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Solution

The fourth proportional to 20,830,282.59, 28,746,086.75 and 12,009,559.38 is: 16,573,363.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,830,282.59 : 28,746,086.75 = 12,009,559.38 : x
  2. Step 2: Convert to fraction form
    20,830,282.59/28,746,086.75 = 12,009,559.38/x
  3. Step 3: Cross multiply
    20,830,282.59x = 28,746,086.75 × 12,009,559.38
  4. Step 4: Simplify right side
    20,830,282.59x = 345,227,835,643,946.50
  5. Step 5: Solve for x
    x = 345,227,835,643,946.50/20,830,282.59
  6. Step 6: Final answer
    x = 16,573,363.04

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1.5x scale

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.