Home / 1,216,289,025.24-1,678,492,083.82-714,518,957.58

Finding the Fourth Proportional to 1,216,289,025.24, 1,678,492,083.82 and 714,518,957.58

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Solution

The fourth proportional to 1,216,289,025.24, 1,678,492,083.82 and 714,518,957.58 is: 986,043,932.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,289,025.24 : 1,678,492,083.82 = 714,518,957.58 : x
  2. Step 2: Convert to fraction form
    1,216,289,025.24/1,678,492,083.82 = 714,518,957.58/x
  3. Step 3: Cross multiply
    1,216,289,025.24x = 1,678,492,083.82 × 714,518,957.58
  4. Step 4: Simplify right side
    1,216,289,025.24x = 1,199,314,414,037,348,352
  5. Step 5: Solve for x
    x = 1,199,314,414,037,348,352/1,216,289,025.24
  6. Step 6: Final answer
    x = 986,043,932.94

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Half scale
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Double scale
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1.5x scale

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.