Home / 286,985,781.60-430,478,672.40-259,776,002.40

Finding the Fourth Proportional to 286,985,781.60, 430,478,672.40 and 259,776,002.40

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Solution

The fourth proportional to 286,985,781.60, 430,478,672.40 and 259,776,002.40 is: 389,664,003.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,985,781.60 : 430,478,672.40 = 259,776,002.40 : x
  2. Step 2: Convert to fraction form
    286,985,781.60/430,478,672.40 = 259,776,002.40/x
  3. Step 3: Cross multiply
    286,985,781.60x = 430,478,672.40 × 259,776,002.40
  4. Step 4: Simplify right side
    286,985,781.60x = 111,828,028,634,531,216
  5. Step 5: Solve for x
    x = 111,828,028,634,531,216/286,985,781.60
  6. Step 6: Final answer
    x = 389,664,003.60

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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.