Home / 1,181,008,021.60-1,771,512,032.40-636,812,437.60

Finding the Fourth Proportional to 1,181,008,021.60, 1,771,512,032.40 and 636,812,437.60

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Solution

The fourth proportional to 1,181,008,021.60, 1,771,512,032.40 and 636,812,437.60 is: 955,218,656.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,181,008,021.60 : 1,771,512,032.40 = 636,812,437.60 : x
  2. Step 2: Convert to fraction form
    1,181,008,021.60/1,771,512,032.40 = 636,812,437.60/x
  3. Step 3: Cross multiply
    1,181,008,021.60x = 1,771,512,032.40 × 636,812,437.60
  4. Step 4: Simplify right side
    1,181,008,021.60x = 1,128,120,895,590,374,272
  5. Step 5: Solve for x
    x = 1,128,120,895,590,374,272/1,181,008,021.60
  6. Step 6: Final answer
    x = 955,218,656.40

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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.