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Finding the Fourth Proportional to 1,214,789,677.92, 1,676,401,408.08 and 657,859,980.32

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Solution

The fourth proportional to 1,214,789,677.92, 1,676,401,408.08 and 657,859,980.32 is: 907,842,252.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,789,677.92 : 1,676,401,408.08 = 657,859,980.32 : x
  2. Step 2: Convert to fraction form
    1,214,789,677.92/1,676,401,408.08 = 657,859,980.32/x
  3. Step 3: Cross multiply
    1,214,789,677.92x = 1,676,401,408.08 × 657,859,980.32
  4. Step 4: Simplify right side
    1,214,789,677.92x = 1,102,837,397,327,929,088
  5. Step 5: Solve for x
    x = 1,102,837,397,327,929,088/1,214,789,677.92
  6. Step 6: Final answer
    x = 907,842,252.34

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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.