Home / 28,124,417.34-38,813,202.88-15,733,771.61

Finding the Fourth Proportional to 28,124,417.34, 38,813,202.88 and 15,733,771.61

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Solution

The fourth proportional to 28,124,417.34, 38,813,202.88 and 15,733,771.61 is: 21,713,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,124,417.34 : 38,813,202.88 = 15,733,771.61 : x
  2. Step 2: Convert to fraction form
    28,124,417.34/38,813,202.88 = 15,733,771.61/x
  3. Step 3: Cross multiply
    28,124,417.34x = 38,813,202.88 × 15,733,771.61
  4. Step 4: Simplify right side
    28,124,417.34x = 610,678,069,333,113.75
  5. Step 5: Solve for x
    x = 610,678,069,333,113.75/28,124,417.34
  6. Step 6: Final answer
    x = 21,713,447.85

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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.