Home / 39,533,793.21-54,518,307.23-30,828,789.63

Finding the Fourth Proportional to 39,533,793.21, 54,518,307.23 and 30,828,789.63

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Solution

The fourth proportional to 39,533,793.21, 54,518,307.23 and 30,828,789.63 is: 42,513,841.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,533,793.21 : 54,518,307.23 = 30,828,789.63 : x
  2. Step 2: Convert to fraction form
    39,533,793.21/54,518,307.23 = 30,828,789.63/x
  3. Step 3: Cross multiply
    39,533,793.21x = 54,518,307.23 × 30,828,789.63
  4. Step 4: Simplify right side
    39,533,793.21x = 1,680,733,424,577,377.75
  5. Step 5: Solve for x
    x = 1,680,733,424,577,377.75/39,533,793.21
  6. Step 6: Final answer
    x = 42,513,841.66

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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.