Home / 286,018,459.13-429,031,674.65-81,546,534.38

Finding the Fourth Proportional to 286,018,459.13, 429,031,674.65 and 81,546,534.38

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Solution

The fourth proportional to 286,018,459.13, 429,031,674.65 and 81,546,534.38 is: 122,320,938.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,018,459.13 : 429,031,674.65 = 81,546,534.38 : x
  2. Step 2: Convert to fraction form
    286,018,459.13/429,031,674.65 = 81,546,534.38/x
  3. Step 3: Cross multiply
    286,018,459.13x = 429,031,674.65 × 81,546,534.38
  4. Step 4: Simplify right side
    286,018,459.13x = 34,986,046,208,231,640
  5. Step 5: Solve for x
    x = 34,986,046,208,231,640/286,018,459.13
  6. Step 6: Final answer
    x = 122,320,938.01

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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.