Home / 823,528,274.10-1,235,292,411.15-278,261,934.90

Finding the Fourth Proportional to 823,528,274.10, 1,235,292,411.15 and 278,261,934.90

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Solution

The fourth proportional to 823,528,274.10, 1,235,292,411.15 and 278,261,934.90 is: 417,392,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,528,274.10 : 1,235,292,411.15 = 278,261,934.90 : x
  2. Step 2: Convert to fraction form
    823,528,274.10/1,235,292,411.15 = 278,261,934.90/x
  3. Step 3: Cross multiply
    823,528,274.10x = 1,235,292,411.15 × 278,261,934.90
  4. Step 4: Simplify right side
    823,528,274.10x = 343,734,856,493,885,312
  5. Step 5: Solve for x
    x = 343,734,856,493,885,312/823,528,274.10
  6. Step 6: Final answer
    x = 417,392,902.35

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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.