Home / 286,458,940.80-429,688,411.20-92,376,687.60

Finding the Fourth Proportional to 286,458,940.80, 429,688,411.20 and 92,376,687.60

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Solution

The fourth proportional to 286,458,940.80, 429,688,411.20 and 92,376,687.60 is: 138,565,031.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,458,940.80 : 429,688,411.20 = 92,376,687.60 : x
  2. Step 2: Convert to fraction form
    286,458,940.80/429,688,411.20 = 92,376,687.60/x
  3. Step 3: Cross multiply
    286,458,940.80x = 429,688,411.20 × 92,376,687.60
  4. Step 4: Simplify right side
    286,458,940.80x = 39,693,192,126,762,736
  5. Step 5: Solve for x
    x = 39,693,192,126,762,736/286,458,940.80
  6. Step 6: Final answer
    x = 138,565,031.40

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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.