Home / 45,049,689.68-67,574,533.59-20,781,436.41

Finding the Fourth Proportional to 45,049,689.68, 67,574,533.59 and 20,781,436.41

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Solution

The fourth proportional to 45,049,689.68, 67,574,533.59 and 20,781,436.41 is: 31,172,154.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,049,689.68 : 67,574,533.59 = 20,781,436.41 : x
  2. Step 2: Convert to fraction form
    45,049,689.68/67,574,533.59 = 20,781,436.41/x
  3. Step 3: Cross multiply
    45,049,689.68x = 67,574,533.59 × 20,781,436.41
  4. Step 4: Simplify right side
    45,049,689.68x = 1,404,295,872,735,994
  5. Step 5: Solve for x
    x = 1,404,295,872,735,994/45,049,689.68
  6. Step 6: Final answer
    x = 31,172,154.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.