Home / 1,238,842,451.40-1,858,263,677.10-715,107,345.90

Finding the Fourth Proportional to 1,238,842,451.40, 1,858,263,677.10 and 715,107,345.90

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Solution

The fourth proportional to 1,238,842,451.40, 1,858,263,677.10 and 715,107,345.90 is: 1,072,661,018.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,842,451.40 : 1,858,263,677.10 = 715,107,345.90 : x
  2. Step 2: Convert to fraction form
    1,238,842,451.40/1,858,263,677.10 = 715,107,345.90/x
  3. Step 3: Cross multiply
    1,238,842,451.40x = 1,858,263,677.10 × 715,107,345.90
  4. Step 4: Simplify right side
    1,238,842,451.40x = 1,328,858,006,113,355,520
  5. Step 5: Solve for x
    x = 1,328,858,006,113,355,520/1,238,842,451.40
  6. Step 6: Final answer
    x = 1,072,661,018.85

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Double scale
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Similar ratio
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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.