Home / 8,138,875.80-12,208,313.70-6,255,125.40

Finding the Fourth Proportional to 8,138,875.80, 12,208,313.70 and 6,255,125.40

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Solution

The fourth proportional to 8,138,875.80, 12,208,313.70 and 6,255,125.40 is: 9,382,688.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,138,875.80 : 12,208,313.70 = 6,255,125.40 : x
  2. Step 2: Convert to fraction form
    8,138,875.80/12,208,313.70 = 6,255,125.40/x
  3. Step 3: Cross multiply
    8,138,875.80x = 12,208,313.70 × 6,255,125.40
  4. Step 4: Simplify right side
    8,138,875.80x = 76,364,533,116,037.98
  5. Step 5: Solve for x
    x = 76,364,533,116,037.98/8,138,875.80
  6. Step 6: Final answer
    x = 9,382,688.10

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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.