Home / 9,920,928.72-13,689,824.04-5,570,490

Finding the Fourth Proportional to 9,920,928.72, 13,689,824.04 and 5,570,490

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Solution

The fourth proportional to 9,920,928.72, 13,689,824.04 and 5,570,490 is: 7,686,682.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,920,928.72 : 13,689,824.04 = 5,570,490 : x
  2. Step 2: Convert to fraction form
    9,920,928.72/13,689,824.04 = 5,570,490/x
  3. Step 3: Cross multiply
    9,920,928.72x = 13,689,824.04 × 5,570,490
  4. Step 4: Simplify right side
    9,920,928.72x = 76,259,027,916,579.59
  5. Step 5: Solve for x
    x = 76,259,027,916,579.59/9,920,928.72
  6. Step 6: Final answer
    x = 7,686,682.37

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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.