Home / 39,353,378.62-54,307,851.31-21,712,280.17

Finding the Fourth Proportional to 39,353,378.62, 54,307,851.31 and 21,712,280.17

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Solution

The fourth proportional to 39,353,378.62, 54,307,851.31 and 21,712,280.17 is: 29,963,050.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,353,378.62 : 54,307,851.31 = 21,712,280.17 : x
  2. Step 2: Convert to fraction form
    39,353,378.62/54,307,851.31 = 21,712,280.17/x
  3. Step 3: Cross multiply
    39,353,378.62x = 54,307,851.31 × 21,712,280.17
  4. Step 4: Simplify right side
    39,353,378.62x = 1,179,147,282,875,735.50
  5. Step 5: Solve for x
    x = 1,179,147,282,875,735.50/39,353,378.62
  6. Step 6: Final answer
    x = 29,963,050.80

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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.