Home / 286,021,264.50-429,035,882.55-81,549,339.75

Finding the Fourth Proportional to 286,021,264.50, 429,035,882.55 and 81,549,339.75

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Solution

The fourth proportional to 286,021,264.50, 429,035,882.55 and 81,549,339.75 is: 122,325,146.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,021,264.50 : 429,035,882.55 = 81,549,339.75 : x
  2. Step 2: Convert to fraction form
    286,021,264.50/429,035,882.55 = 81,549,339.75/x
  3. Step 3: Cross multiply
    286,021,264.50x = 429,035,882.55 × 81,549,339.75
  4. Step 4: Simplify right side
    286,021,264.50x = 34,987,592,951,011,048
  5. Step 5: Solve for x
    x = 34,987,592,951,011,048/286,021,264.50
  6. Step 6: Final answer
    x = 122,325,146.04

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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.