Home / 1,278,553,327.80-1,917,829,991.70-460,692,310.20

Finding the Fourth Proportional to 1,278,553,327.80, 1,917,829,991.70 and 460,692,310.20

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Solution

The fourth proportional to 1,278,553,327.80, 1,917,829,991.70 and 460,692,310.20 is: 691,038,465.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,553,327.80 : 1,917,829,991.70 = 460,692,310.20 : x
  2. Step 2: Convert to fraction form
    1,278,553,327.80/1,917,829,991.70 = 460,692,310.20/x
  3. Step 3: Cross multiply
    1,278,553,327.80x = 1,917,829,991.70 × 460,692,310.20
  4. Step 4: Simplify right side
    1,278,553,327.80x = 883,529,529,447,119,872
  5. Step 5: Solve for x
    x = 883,529,529,447,119,872/1,278,553,327.80
  6. Step 6: Final answer
    x = 691,038,465.30

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Double scale
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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.