Home / 81,152,595.16-111,925,281-71,342,063.08

Finding the Fourth Proportional to 81,152,595.16, 111,925,281 and 71,342,063.08

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Solution

The fourth proportional to 81,152,595.16, 111,925,281 and 71,342,063.08 is: 98,394,640.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,152,595.16 : 111,925,281 = 71,342,063.08 : x
  2. Step 2: Convert to fraction form
    81,152,595.16/111,925,281 = 71,342,063.08/x
  3. Step 3: Cross multiply
    81,152,595.16x = 111,925,281 × 71,342,063.08
  4. Step 4: Simplify right side
    81,152,595.16x = 7,984,980,457,348,725
  5. Step 5: Solve for x
    x = 7,984,980,457,348,725/81,152,595.16
  6. Step 6: Final answer
    x = 98,394,640.88

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Double scale
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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.