Home / 1,431,605,721.88-1,975,584,925.26-828,801,899.74

Finding the Fourth Proportional to 1,431,605,721.88, 1,975,584,925.26 and 828,801,899.74

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Solution

The fourth proportional to 1,431,605,721.88, 1,975,584,925.26 and 828,801,899.74 is: 1,143,728,691.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,605,721.88 : 1,975,584,925.26 = 828,801,899.74 : x
  2. Step 2: Convert to fraction form
    1,431,605,721.88/1,975,584,925.26 = 828,801,899.74/x
  3. Step 3: Cross multiply
    1,431,605,721.88x = 1,975,584,925.26 × 828,801,899.74
  4. Step 4: Simplify right side
    1,431,605,721.88x = 1,637,368,539,153,193,984
  5. Step 5: Solve for x
    x = 1,637,368,539,153,193,984/1,431,605,721.88
  6. Step 6: Final answer
    x = 1,143,728,691.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.