Home / 711,921,840.80-1,067,882,761.20-302,875,210.40

Finding the Fourth Proportional to 711,921,840.80, 1,067,882,761.20 and 302,875,210.40

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Solution

The fourth proportional to 711,921,840.80, 1,067,882,761.20 and 302,875,210.40 is: 454,312,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,921,840.80 : 1,067,882,761.20 = 302,875,210.40 : x
  2. Step 2: Convert to fraction form
    711,921,840.80/1,067,882,761.20 = 302,875,210.40/x
  3. Step 3: Cross multiply
    711,921,840.80x = 1,067,882,761.20 × 302,875,210.40
  4. Step 4: Simplify right side
    711,921,840.80x = 323,435,215,980,982,976
  5. Step 5: Solve for x
    x = 323,435,215,980,982,976/711,921,840.80
  6. Step 6: Final answer
    x = 454,312,815.60

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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.