Home / 5,172,477.76-7,138,240.70-2,880,638.45

Finding the Fourth Proportional to 5,172,477.76, 7,138,240.70 and 2,880,638.45

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Solution

The fourth proportional to 5,172,477.76, 7,138,240.70 and 2,880,638.45 is: 3,975,404.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,172,477.76 : 7,138,240.70 = 2,880,638.45 : x
  2. Step 2: Convert to fraction form
    5,172,477.76/7,138,240.70 = 2,880,638.45/x
  3. Step 3: Cross multiply
    5,172,477.76x = 7,138,240.70 × 2,880,638.45
  4. Step 4: Simplify right side
    5,172,477.76x = 20,562,690,602,448.92
  5. Step 5: Solve for x
    x = 20,562,690,602,448.92/5,172,477.76
  6. Step 6: Final answer
    x = 3,975,404.35

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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.