Home / 1,389,019,402.37-2,080,804,925.31-805,527,792.65

Finding the Fourth Proportional to 1,389,019,402.37, 2,080,804,925.31 and 805,527,792.65

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Solution

The fourth proportional to 1,389,019,402.37, 2,080,804,925.31 and 805,527,792.65 is: 1,206,711,868.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,019,402.37 : 2,080,804,925.31 = 805,527,792.65 : x
  2. Step 2: Convert to fraction form
    1,389,019,402.37/2,080,804,925.31 = 805,527,792.65/x
  3. Step 3: Cross multiply
    1,389,019,402.37x = 2,080,804,925.31 × 805,527,792.65
  4. Step 4: Simplify right side
    1,389,019,402.37x = 1,676,146,198,409,808,384
  5. Step 5: Solve for x
    x = 1,676,146,198,409,808,384/1,389,019,402.37
  6. Step 6: Final answer
    x = 1,206,711,868.50

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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.