Home / 711,921,773.80-1,067,882,660.70-302,875,143.40

Finding the Fourth Proportional to 711,921,773.80, 1,067,882,660.70 and 302,875,143.40

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Solution

The fourth proportional to 711,921,773.80, 1,067,882,660.70 and 302,875,143.40 is: 454,312,715.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,921,773.80 : 1,067,882,660.70 = 302,875,143.40 : x
  2. Step 2: Convert to fraction form
    711,921,773.80/1,067,882,660.70 = 302,875,143.40/x
  3. Step 3: Cross multiply
    711,921,773.80x = 1,067,882,660.70 × 302,875,143.40
  4. Step 4: Simplify right side
    711,921,773.80x = 323,435,113,993,886,016
  5. Step 5: Solve for x
    x = 323,435,113,993,886,016/711,921,773.80
  6. Step 6: Final answer
    x = 454,312,715.10

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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.