Home / 21,169,585-31,756,074.95-8,045,290.32

Finding the Fourth Proportional to 21,169,585, 31,756,074.95 and 8,045,290.32

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Solution

The fourth proportional to 21,169,585, 31,756,074.95 and 8,045,290.32 is: 12,068,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,169,585 : 31,756,074.95 = 8,045,290.32 : x
  2. Step 2: Convert to fraction form
    21,169,585/31,756,074.95 = 8,045,290.32/x
  3. Step 3: Cross multiply
    21,169,585x = 31,756,074.95 × 8,045,290.32
  4. Step 4: Simplify right side
    21,169,585x = 255,486,842,396,429.50
  5. Step 5: Solve for x
    x = 255,486,842,396,429.50/21,169,585
  6. Step 6: Final answer
    x = 12,068,580.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.