Home / 81,300,001.42-112,194,109.65-44,130,257.56

Finding the Fourth Proportional to 81,300,001.42, 112,194,109.65 and 44,130,257.56

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Solution

The fourth proportional to 81,300,001.42, 112,194,109.65 and 44,130,257.56 is: 60,899,813.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,300,001.42 : 112,194,109.65 = 44,130,257.56 : x
  2. Step 2: Convert to fraction form
    81,300,001.42/112,194,109.65 = 44,130,257.56/x
  3. Step 3: Cross multiply
    81,300,001.42x = 112,194,109.65 × 44,130,257.56
  4. Step 4: Simplify right side
    81,300,001.42x = 4,951,154,955,569,382
  5. Step 5: Solve for x
    x = 4,951,154,955,569,382/81,300,001.42
  6. Step 6: Final answer
    x = 60,899,813.89

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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.