Home / 891,471,206.80-1,337,206,810.20-278,054,448.40

Finding the Fourth Proportional to 891,471,206.80, 1,337,206,810.20 and 278,054,448.40

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Solution

The fourth proportional to 891,471,206.80, 1,337,206,810.20 and 278,054,448.40 is: 417,081,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,471,206.80 : 1,337,206,810.20 = 278,054,448.40 : x
  2. Step 2: Convert to fraction form
    891,471,206.80/1,337,206,810.20 = 278,054,448.40/x
  3. Step 3: Cross multiply
    891,471,206.80x = 1,337,206,810.20 × 278,054,448.40
  4. Step 4: Simplify right side
    891,471,206.80x = 371,816,302,006,884,480
  5. Step 5: Solve for x
    x = 371,816,302,006,884,480/891,471,206.80
  6. Step 6: Final answer
    x = 417,081,672.60

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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.