Home / 1,282,404,749.32-1,769,569,254.57-717,920,541.28

Finding the Fourth Proportional to 1,282,404,749.32, 1,769,569,254.57 and 717,920,541.28

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Solution

The fourth proportional to 1,282,404,749.32, 1,769,569,254.57 and 717,920,541.28 is: 990,646,765.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,282,404,749.32 : 1,769,569,254.57 = 717,920,541.28 : x
  2. Step 2: Convert to fraction form
    1,282,404,749.32/1,769,569,254.57 = 717,920,541.28/x
  3. Step 3: Cross multiply
    1,282,404,749.32x = 1,769,569,254.57 × 717,920,541.28
  4. Step 4: Simplify right side
    1,282,404,749.32x = 1,270,410,117,073,340,416
  5. Step 5: Solve for x
    x = 1,270,410,117,073,340,416/1,282,404,749.32
  6. Step 6: Final answer
    x = 990,646,765.58

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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.