Home / 286,018,531.84-429,031,784.04-81,546,607.36

Finding the Fourth Proportional to 286,018,531.84, 429,031,784.04 and 81,546,607.36

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Solution

The fourth proportional to 286,018,531.84, 429,031,784.04 and 81,546,607.36 is: 122,321,047.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,018,531.84 : 429,031,784.04 = 81,546,607.36 : x
  2. Step 2: Convert to fraction form
    286,018,531.84/429,031,784.04 = 81,546,607.36/x
  3. Step 3: Cross multiply
    286,018,531.84x = 429,031,784.04 × 81,546,607.36
  4. Step 4: Simplify right side
    286,018,531.84x = 34,986,086,438,070,196
  5. Step 5: Solve for x
    x = 34,986,086,438,070,196/286,018,531.84
  6. Step 6: Final answer
    x = 122,321,047.57

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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.