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Finding the Fourth Proportional to 286,490,504.64, 429,735,220.08 and 89,768,978.88

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Solution

The fourth proportional to 286,490,504.64, 429,735,220.08 and 89,768,978.88 is: 134,653,300.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,490,504.64 : 429,735,220.08 = 89,768,978.88 : x
  2. Step 2: Convert to fraction form
    286,490,504.64/429,735,220.08 = 89,768,978.88/x
  3. Step 3: Cross multiply
    286,490,504.64x = 429,735,220.08 × 89,768,978.88
  4. Step 4: Simplify right side
    286,490,504.64x = 38,576,891,895,353,672
  5. Step 5: Solve for x
    x = 38,576,891,895,353,672/286,490,504.64
  6. Step 6: Final answer
    x = 134,653,300.09

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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.