Home / 30,167,390.80-41,651,827.32-28,240,031.44

Finding the Fourth Proportional to 30,167,390.80, 41,651,827.32 and 28,240,031.44

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Solution

The fourth proportional to 30,167,390.80, 41,651,827.32 and 28,240,031.44 is: 38,990,740.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,167,390.80 : 41,651,827.32 = 28,240,031.44 : x
  2. Step 2: Convert to fraction form
    30,167,390.80/41,651,827.32 = 28,240,031.44/x
  3. Step 3: Cross multiply
    30,167,390.80x = 41,651,827.32 × 28,240,031.44
  4. Step 4: Simplify right side
    30,167,390.80x = 1,176,248,913,050,251
  5. Step 5: Solve for x
    x = 1,176,248,913,050,251/30,167,390.80
  6. Step 6: Final answer
    x = 38,990,740.73

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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.