Home / 839,811,246.40-1,259,716,869.60-472,479,227.20

Finding the Fourth Proportional to 839,811,246.40, 1,259,716,869.60 and 472,479,227.20

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Solution

The fourth proportional to 839,811,246.40, 1,259,716,869.60 and 472,479,227.20 is: 708,718,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,811,246.40 : 1,259,716,869.60 = 472,479,227.20 : x
  2. Step 2: Convert to fraction form
    839,811,246.40/1,259,716,869.60 = 472,479,227.20/x
  3. Step 3: Cross multiply
    839,811,246.40x = 1,259,716,869.60 × 472,479,227.20
  4. Step 4: Simplify right side
    839,811,246.40x = 595,190,053,039,411,072
  5. Step 5: Solve for x
    x = 595,190,053,039,411,072/839,811,246.40
  6. Step 6: Final answer
    x = 708,718,840.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.