Home / 39,281,981.01-54,210,823.25-21,878,333.97

Finding the Fourth Proportional to 39,281,981.01, 54,210,823.25 and 21,878,333.97

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Solution

The fourth proportional to 39,281,981.01, 54,210,823.25 and 21,878,333.97 is: 30,193,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,281,981.01 : 54,210,823.25 = 21,878,333.97 : x
  2. Step 2: Convert to fraction form
    39,281,981.01/54,210,823.25 = 21,878,333.97/x
  3. Step 3: Cross multiply
    39,281,981.01x = 54,210,823.25 × 21,878,333.97
  4. Step 4: Simplify right side
    39,281,981.01x = 1,186,042,495,852,140.75
  5. Step 5: Solve for x
    x = 1,186,042,495,852,140.75/39,281,981.01
  6. Step 6: Final answer
    x = 30,193,041.83

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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.