Home / 1,222,079,110.28-1,686,612,777.54-686,318,823.08

Finding the Fourth Proportional to 1,222,079,110.28, 1,686,612,777.54 and 686,318,823.08

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Solution

The fourth proportional to 1,222,079,110.28, 1,686,612,777.54 and 686,318,823.08 is: 947,200,624.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,079,110.28 : 1,686,612,777.54 = 686,318,823.08 : x
  2. Step 2: Convert to fraction form
    1,222,079,110.28/1,686,612,777.54 = 686,318,823.08/x
  3. Step 3: Cross multiply
    1,222,079,110.28x = 1,686,612,777.54 × 686,318,823.08
  4. Step 4: Simplify right side
    1,222,079,110.28x = 1,157,554,096,472,942,592
  5. Step 5: Solve for x
    x = 1,157,554,096,472,942,592/1,222,079,110.28
  6. Step 6: Final answer
    x = 947,200,624.52

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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.