Home / 1,211,114,719.80-1,671,338,985.84-654,197,772.36

Finding the Fourth Proportional to 1,211,114,719.80, 1,671,338,985.84 and 654,197,772.36

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Solution

The fourth proportional to 1,211,114,719.80, 1,671,338,985.84 and 654,197,772.36 is: 902,793,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,114,719.80 : 1,671,338,985.84 = 654,197,772.36 : x
  2. Step 2: Convert to fraction form
    1,211,114,719.80/1,671,338,985.84 = 654,197,772.36/x
  3. Step 3: Cross multiply
    1,211,114,719.80x = 1,671,338,985.84 × 654,197,772.36
  4. Step 4: Simplify right side
    1,211,114,719.80x = 1,093,386,241,394,949,504
  5. Step 5: Solve for x
    x = 1,093,386,241,394,949,504/1,211,114,719.80
  6. Step 6: Final answer
    x = 902,793,289.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.