Home / 809,168,808.50-1,213,261,711.61-317,292,803.63

Finding the Fourth Proportional to 809,168,808.50, 1,213,261,711.61 and 317,292,803.63

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Solution

The fourth proportional to 809,168,808.50, 1,213,261,711.61 and 317,292,803.63 is: 475,746,477.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,168,808.50 : 1,213,261,711.61 = 317,292,803.63 : x
  2. Step 2: Convert to fraction form
    809,168,808.50/1,213,261,711.61 = 317,292,803.63/x
  3. Step 3: Cross multiply
    809,168,808.50x = 1,213,261,711.61 × 317,292,803.63
  4. Step 4: Simplify right side
    809,168,808.50x = 384,959,210,007,603,072
  5. Step 5: Solve for x
    x = 384,959,210,007,603,072/809,168,808.50
  6. Step 6: Final answer
    x = 475,746,477.08

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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.