Home / 286,924,456.69-429,938,281.67-199,656,478.21

Finding the Fourth Proportional to 286,924,456.69, 429,938,281.67 and 199,656,478.21

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Solution

The fourth proportional to 286,924,456.69, 429,938,281.67 and 199,656,478.21 is: 299,172,695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,924,456.69 : 429,938,281.67 = 199,656,478.21 : x
  2. Step 2: Convert to fraction form
    286,924,456.69/429,938,281.67 = 199,656,478.21/x
  3. Step 3: Cross multiply
    286,924,456.69x = 429,938,281.67 × 199,656,478.21
  4. Step 4: Simplify right side
    286,924,456.69x = 85,839,963,165,891,200
  5. Step 5: Solve for x
    x = 85,839,963,165,891,200/286,924,456.69
  6. Step 6: Final answer
    x = 299,172,695.68

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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.