Home / 898,476,506.78-1,239,961,740.12-496,581,609.80

Finding the Fourth Proportional to 898,476,506.78, 1,239,961,740.12 and 496,581,609.80

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Solution

The fourth proportional to 898,476,506.78, 1,239,961,740.12 and 496,581,609.80 is: 685,318,082.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,476,506.78 : 1,239,961,740.12 = 496,581,609.80 : x
  2. Step 2: Convert to fraction form
    898,476,506.78/1,239,961,740.12 = 496,581,609.80/x
  3. Step 3: Cross multiply
    898,476,506.78x = 1,239,961,740.12 × 496,581,609.80
  4. Step 4: Simplify right side
    898,476,506.78x = 615,742,196,999,198,848
  5. Step 5: Solve for x
    x = 615,742,196,999,198,848/898,476,506.78
  6. Step 6: Final answer
    x = 685,318,082.72

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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.