Home / 69,921,954.12-96,461,685.64-66,680,164

Finding the Fourth Proportional to 69,921,954.12, 96,461,685.64 and 66,680,164

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Solution

The fourth proportional to 69,921,954.12, 96,461,685.64 and 66,680,164 is: 91,989,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,921,954.12 : 96,461,685.64 = 66,680,164 : x
  2. Step 2: Convert to fraction form
    69,921,954.12/96,461,685.64 = 66,680,164/x
  3. Step 3: Cross multiply
    69,921,954.12x = 96,461,685.64 × 66,680,164
  4. Step 4: Simplify right side
    69,921,954.12x = 6,432,081,018,191,645
  5. Step 5: Solve for x
    x = 6,432,081,018,191,645/69,921,954.12
  6. Step 6: Final answer
    x = 91,989,434.49

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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.