Home / 286,018,466.85-429,031,686.22-81,546,542.10

Finding the Fourth Proportional to 286,018,466.85, 429,031,686.22 and 81,546,542.10

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Solution

The fourth proportional to 286,018,466.85, 429,031,686.22 and 81,546,542.10 is: 122,320,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,018,466.85 : 429,031,686.22 = 81,546,542.10 : x
  2. Step 2: Convert to fraction form
    286,018,466.85/429,031,686.22 = 81,546,542.10/x
  3. Step 3: Cross multiply
    286,018,466.85x = 429,031,686.22 × 81,546,542.10
  4. Step 4: Simplify right side
    286,018,466.85x = 34,986,050,462,369,348
  5. Step 5: Solve for x
    x = 34,986,050,462,369,348/286,018,466.85
  6. Step 6: Final answer
    x = 122,320,949.58

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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.