Home / 1,311,228,057.80-1,966,796,597.10-328,663,195.40

Finding the Fourth Proportional to 1,311,228,057.80, 1,966,796,597.10 and 328,663,195.40

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Solution

The fourth proportional to 1,311,228,057.80, 1,966,796,597.10 and 328,663,195.40 is: 492,983,391.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,228,057.80 : 1,966,796,597.10 = 328,663,195.40 : x
  2. Step 2: Convert to fraction form
    1,311,228,057.80/1,966,796,597.10 = 328,663,195.40/x
  3. Step 3: Cross multiply
    1,311,228,057.80x = 1,966,796,597.10 × 328,663,195.40
  4. Step 4: Simplify right side
    1,311,228,057.80x = 646,413,654,304,732,288
  5. Step 5: Solve for x
    x = 646,413,654,304,732,288/1,311,228,057.80
  6. Step 6: Final answer
    x = 492,983,391.00

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Double scale
Find fourth proportional to 1,311,228,058.80, 1,966,796,598.60 and 328,663,196.40
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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.