Home / 81,841,869,143.12-112,940,587,261.32-45,713,415,659.60

Finding the Fourth Proportional to 81,841,869,143.12, 112,940,587,261.32 and 45,713,415,659.60

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Solution

The fourth proportional to 81,841,869,143.12, 112,940,587,261.32 and 45,713,415,659.60 is: 63,083,847,722.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,841,869,143.12 : 112,940,587,261.32 = 45,713,415,659.60 : x
  2. Step 2: Convert to fraction form
    81,841,869,143.12/112,940,587,261.32 = 45,713,415,659.60/x
  3. Step 3: Cross multiply
    81,841,869,143.12x = 112,940,587,261.32 × 45,713,415,659.60
  4. Step 4: Simplify right side
    81,841,869,143.12x = 5,162,900,010,316,045,746,176
  5. Step 5: Solve for x
    x = 5,162,900,010,316,045,746,176/81,841,869,143.12
  6. Step 6: Final answer
    x = 63,083,847,722.09

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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.