Home / 808,634,720.10-1,212,952,080.15-263,376,254.10

Finding the Fourth Proportional to 808,634,720.10, 1,212,952,080.15 and 263,376,254.10

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Solution

The fourth proportional to 808,634,720.10, 1,212,952,080.15 and 263,376,254.10 is: 395,064,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,634,720.10 : 1,212,952,080.15 = 263,376,254.10 : x
  2. Step 2: Convert to fraction form
    808,634,720.10/1,212,952,080.15 = 263,376,254.10/x
  3. Step 3: Cross multiply
    808,634,720.10x = 1,212,952,080.15 × 263,376,254.10
  4. Step 4: Simplify right side
    808,634,720.10x = 319,462,775,272,710,016
  5. Step 5: Solve for x
    x = 319,462,775,272,710,016/808,634,720.10
  6. Step 6: Final answer
    x = 395,064,381.15

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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.