Home / 1,250,303,998.40-1,875,455,997.60-638,774,475.20

Finding the Fourth Proportional to 1,250,303,998.40, 1,875,455,997.60 and 638,774,475.20

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Solution

The fourth proportional to 1,250,303,998.40, 1,875,455,997.60 and 638,774,475.20 is: 958,161,712.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,250,303,998.40 : 1,875,455,997.60 = 638,774,475.20 : x
  2. Step 2: Convert to fraction form
    1,250,303,998.40/1,875,455,997.60 = 638,774,475.20/x
  3. Step 3: Cross multiply
    1,250,303,998.40x = 1,875,455,997.60 × 638,774,475.20
  4. Step 4: Simplify right side
    1,250,303,998.40x = 1,197,993,420,627,632,384
  5. Step 5: Solve for x
    x = 1,197,993,420,627,632,384/1,250,303,998.40
  6. Step 6: Final answer
    x = 958,161,712.80

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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.