Home / 916,263,770.68-1,264,433,374.74-498,568,859.56

Finding the Fourth Proportional to 916,263,770.68, 1,264,433,374.74 and 498,568,859.56

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Solution

The fourth proportional to 916,263,770.68, 1,264,433,374.74 and 498,568,859.56 is: 688,019,242.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,263,770.68 : 1,264,433,374.74 = 498,568,859.56 : x
  2. Step 2: Convert to fraction form
    916,263,770.68/1,264,433,374.74 = 498,568,859.56/x
  3. Step 3: Cross multiply
    916,263,770.68x = 1,264,433,374.74 × 498,568,859.56
  4. Step 4: Simplify right side
    916,263,770.68x = 630,407,105,633,723,904
  5. Step 5: Solve for x
    x = 630,407,105,633,723,904/916,263,770.68
  6. Step 6: Final answer
    x = 688,019,242.72

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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.