Home / 10,255,784.64-14,157,340.56-6,390,215.70

Finding the Fourth Proportional to 10,255,784.64, 14,157,340.56 and 6,390,215.70

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Solution

The fourth proportional to 10,255,784.64, 14,157,340.56 and 6,390,215.70 is: 8,821,212.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,255,784.64 : 14,157,340.56 = 6,390,215.70 : x
  2. Step 2: Convert to fraction form
    10,255,784.64/14,157,340.56 = 6,390,215.70/x
  3. Step 3: Cross multiply
    10,255,784.64x = 14,157,340.56 × 6,390,215.70
  4. Step 4: Simplify right side
    10,255,784.64x = 90,468,459,916,758.80
  5. Step 5: Solve for x
    x = 90,468,459,916,758.80/10,255,784.64
  6. Step 6: Final answer
    x = 8,821,212.91

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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.