Home / 287,073,009.60-430,609,514.40-200,908,708.80

Finding the Fourth Proportional to 287,073,009.60, 430,609,514.40 and 200,908,708.80

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Solution

The fourth proportional to 287,073,009.60, 430,609,514.40 and 200,908,708.80 is: 301,363,063.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,073,009.60 : 430,609,514.40 = 200,908,708.80 : x
  2. Step 2: Convert to fraction form
    287,073,009.60/430,609,514.40 = 200,908,708.80/x
  3. Step 3: Cross multiply
    287,073,009.60x = 430,609,514.40 × 200,908,708.80
  4. Step 4: Simplify right side
    287,073,009.60x = 86,513,201,535,099,008
  5. Step 5: Solve for x
    x = 86,513,201,535,099,008/287,073,009.60
  6. Step 6: Final answer
    x = 301,363,063.20

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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.