Home / 808,634,877.60-1,212,952,316.40-263,376,411.60

Finding the Fourth Proportional to 808,634,877.60, 1,212,952,316.40 and 263,376,411.60

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Solution

The fourth proportional to 808,634,877.60, 1,212,952,316.40 and 263,376,411.60 is: 395,064,617.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,634,877.60 : 1,212,952,316.40 = 263,376,411.60 : x
  2. Step 2: Convert to fraction form
    808,634,877.60/1,212,952,316.40 = 263,376,411.60/x
  3. Step 3: Cross multiply
    808,634,877.60x = 1,212,952,316.40 × 263,376,411.60
  4. Step 4: Simplify right side
    808,634,877.60x = 319,463,028,535,339,840
  5. Step 5: Solve for x
    x = 319,463,028,535,339,840/808,634,877.60
  6. Step 6: Final answer
    x = 395,064,617.40

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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.